-
APRIL 1972 IL A HARCOURT BRACE JOVANOVICH PUBLICATION
WORLD'S LARGEST TV -RADIO SERVICE & SALES CIRCULATION
Satellite TV...Coming Down to Earth
Wideband Distribution Equipment
-
The Toler PeoplePioneers of TV Tuner Overhauling
Originators of Complete TV Tuner ServiceCastle offers the
following services to solve 411 your television tuner problems.
Universal Replacements from $8.95These universal replacement
tuners areall equipped with memory fine tuningand uhf position with
plug input foruhf tuner. They come complete withhardware and
component kit to adaptfor use in thousands of popular
TVreceivers.
STOCKNo. HEATERS
SHAFTMin Max Snd. PRICE
CR6P Parallel 6.3v 13/4" 3" 41.25 6.95
CR7S Series 600mA 13/4" 3" 41.25 9.50
CR9S Series 450mA 13/4" 3" 41.25 9.50CR6XL Parallel 6.3v 21/2"
12" 41.25 10.45
CR7XL Series 600mA 21/2" 12" 41.25 11.00
CR9XL Series 450mA 21/2" 12" 41.25 11.00
Castle Replacements $15.95Castle custom replacements made to fit
in place of original tuner. Purchase out-right . . . no exchange
needed. Write for current list of Castle replacements, orrequest
the part number you require (use number on ORIGINAL TUNER ONLY;
donot use service literature numbers). Available for many of the
popular models offollowing manufacturers: Admiral, Curtis Mathes,
Emerson, GE, Heathkit, Magna-vox, Motorola, Muntz, Philco, RCA,
Sears, Sylvania, Westinghouse, Zenith andmany private labels.
Tandem uhf- vhf replacements NOW $21.95Available in popular
models of: Muntz, Olympic, Philco, Sears, Westinghouse andprivate
labels.
Overhaul Service $9.95This is the service pioneered by Castle!
We are now in our third decadeof serving the TY Service
IndustryService on all makes and models, vhf or uhf, including
transistor and color tuners. . . one price $9.95 (does not include
tuners older than 10 years). Overhaul in-cludes parts, except tubes
and transistors.Simply send us the defective tuner complete;
include tubes, shield cover and any damaged partswith model number
and complaint. Your tuner will be expertly overhauled and returned
promptly,performance restored, aligned original standards and
warranted for 90 days.Dismantle tandem uhf and vhf tuners and send
in defective unit only. Remove all accessories . . .or dismantling
charge may apply.
Custom Exchange Service $17.9.5When our inspection reveals that
original tuner is unfit for overhaul, and it is notavailable from
our stock of outright replacements, we offer to make a custom
re-placement on exchange basis. Charge for this service is $15.95
for uhf tuner and$17.95 for vhf tuner.If custom replacement cannot
be made we will custom rebuild the original tunerat the exchange
replacement price.
All replacements are new or rebuilt. All prices are f.o.b. our
plant. Add shippingand handling of $1.25 on all prepaid orders. We
will ship C.O.D.
CASTLE TV TUNER SERVICE, INC.MAIN PLANT: 5713 N. Western Ave.,
Chicago, III. 60645 Ph. 312-561-6354
EAST: 130-03 89th Rd., Richmond Hill, N.Y. 11418 Ph.
212-846-5300. . . for more details circle 106 on Reader Service
Card
-
1414ZENITHTV Chassis12CB12X
APRIL 1972
15.0,131,5-861UK TRANSISTOR
TUNER
war(ANT.
ANT.yma
46C
240
111U
MOUNTED ON TUNER
A,
FELDEITIM _1-77=L7.41.31r
COMPLETE MANUFACTURERS' CIRCUIT DIAGRAMSAND TECHNICAL
INFORMATION FOR 5 NEW SETS
0401121-699 OR 121-865
A.G C.DEL AY
I F. ASSEMBLY
150-22
1101
I ST. I.F. COIL
R401 *402ION 1511
4.24V
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S-88964
11224
V203A1/2 17JZ8VERTICAL OSC.
P.04
7-C7101121-503
OR121- 5051ST. I.F.
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121-863A.G.C.OUTPUT
2 TN qN
240
201
VERT.SOLO
C2094,?tR226G
+1200TO C203C
VERT.SIZE
1122$3304
C2065
52311.50
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4 3 4 3 5
4201 202 V204 VT03 V200
0
dos.
720
-1-C:102121-504
OR121-506
L2iND.
I.F.
+ 24V
SYMBOL DESCRIPTION ZENITH PART NO.
C203 -A-50, electrolytic cap, 2000f3.300uf electrolytic cap
175vC-550 uf electrolytic cap 175e + 22.6322D 1000, electrolytic
cap. 175e
R204 -20K. volume control 63.8892R208 -3001l. contrast control
63-8898R222 -250K. bright control 63-8896R227 -7M, vert size
control 63-8897R229 -1M vert hold control 63.8895R235 -voltage
dependent resistor . 63-7447R236 -290K, vert lin control
63-8894
-7, 0103121- 521 OR 121-522OR 121-5283 RD. I.F.
0403121-446 OR121-861A.G.C. GATE
0407121-933
HORIZ. AFC
14747,' 1.:.TO GROWN 1101112OVT.LsT TRANS-IORwER LEAD T204
84121.2 we 6/
To .120V02030
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1.0672 010700.
SEE ALTERNATEPOWER SUPPLY
026010005 ., C2030
210-I100Inv22,4
C234LH 300
30
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+240
1200
0601121-498SOUND
060, I.F. AMP.4."!"*.
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0405121- 447NOISE BIASTRANSISTOR
RM.1120
400033
5420
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241
VCR
P4236800
0406121-600 OR 121-862
VIDEO DRIVER'JUL.
ry
11603310
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3.
R238 -3K, AGC control 63-8893R401 -10K, AGC delay control
63.8791L103-47.25MHz trap coil 20-3100L202-horiz hold 589283T201
-audio output 'dormer 95-30241202 -Vert output ',former 95.29067203
-yoke S-87921T204-horiz sweep ',former S-88066F201 -fuse 1.25a
(pigtail) 136-79
or fuse 1.0a Ibelfusel 136-95A201 -integrator 87-11A202
-integrator 87-4
0602121-453SOUNDLIMITER
c000s
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0406139
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5,00 moll.( AS,(ROLT150-208
116,
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330 R6.PI
614
ELECTRONIC TECHNICIAN/DEALER is pub-lished monthly by HARCOURT
BRACE .10-VANOVICH PUBLICATIONS, INC.. 1 East FirstSt., Duluth,
Minn. 55802. Subscription rates:One year $6, two years $10, three
years $13,in the United States and Canada. Other coun-tries: One
year $15, two years $24, threeyears $30. Single copies 756 in the
UnitedStates, and $2 in other countries. Secondclass postage paid
at Dansville, New Yorkand at additional mailing offices.
Copyright1972 by HARCOURT BRACE JOVANOVICHPUBLICATIONS,
INC.POSTMASTER: Send Form 3579 to ELEC-TRONIC TECHNICIAN/DEALER,
HARCOURTBRACE JOVANOVICH PUBLICATIONS, INC.,1 East First St.,
Duluth, Minn. 55802.
0603121- 434SOUND
R6i5 DRIVER 12 c:0:6 0.
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Ran110
V20112F X5SOUNDOUTPUT
10201TsoNOOK
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OUTPUTE IF AGCP AGC OUTPUT
CONTRAST I
7)00° C/a 400
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0201121-743 OR 121-777VIDEO OUTPUT
TEST POINTS
BRIOIVYNE 55*222250.
522t500
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_VOLUME
G 3RD I F ALIGNMENT.1 SOUND DISCI. OUTPUTJ VIDEO DRIVER
OUTPUT
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020315 203C
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1129120054
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-MO AT 7E11 POW TE1r. MIDLS CONTROLS SIT FOR WIRRAL 11.106
tWe . ""Au v0 ..... S REAMED IRON CHASSIS TO POINTS
INDICATED.
ALL VOLT.. ARE D.C. WILESS OTHERWISE SPECIFIED.
110;W:T1.1::::171TO.V4r1."g:X01!")LL RESISTORS ARE C ..... . 7/.
102. I/1 sari UNLESSTOERWISE SPECIFIED.
I INDICATES Pt. 200 TOLERANCE RAT NE USED.LL 0(5151005 IN 1.1. A
SOUND ASSEMBLY ARE/A VAT, UNLESS OTHERWISE SPECItIED.
ESISTANCE MAURINE/TS SHOWN NITA COILS DISCONNECTEDTOR
CIRCUIT.
COIL RESISTANCES ROY SPECIFIED ARE UNDER ONE OM.
LL [MCI° VALUES IN RICROPANAOS WILES, °TIMMS(PECIFIED.
007 CAPACITY 10 ..... CIS. SEE LRAM
ARROWS Oil POTENTIONETEAS IRDICATE (LOCUM 4010700W.
14H,0EGAHERIEr0EGACYCLE. 070111CRO.....10101CATES CHASSIS
AROUND.
0-- IRDICATES VOLT"( SOURCEINDICATES ALMONER, OR TEST IOW
Opr INDICATES ...um...C.W.O. .ALL. SELECTI, FON 0101000 TORE
RIRAING.
(ARIES WIN A RANGE Of 47 IF 10 77 IF (0 KA..1011. 100EN
NECESSARY. ..... C( sit. EGRET
vAsUf FOUNO IN TORE.
SP 20'
280V P -P18.71 ON
COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER 1 EAST FIRST
STREET, DULUTH. MINNESOTA 55802
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STREET. DULUTH. MINNESOTA 55802
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1413SYLVANIAColor -TV ChassisD17-1-2
APRIL 1972
ELECTRONIC J-TVET4E7ica yirCOMPLETE MANUFACTURERS' CIRCUIT
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- TRANSISTOR E1ASINGS -
0300.03010402
C.09004SAND
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300
SC40413-.7.1.2
600
COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER I EAST FIRST
STREET. DULUTH, MINNESOTA 55802
-
B
C501.001
LI5441.25 MHZ 150
TRAP
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CHROMA AMP
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1I58 200 1 CHROMA %5.61 1 AMP 9 N
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GENERAL ELECTRICColor -TV ChassisN-1
NOTE: CRT SOCKET CONTAINSBUILT IN SPARK GAP.USE ONLY
EXACTREPLACEMENTPART.
11
;
V141
I7E XP2 2
13
160V
4708 R559
Rm7,t44:,74:(160V-
RED ear_ R56,11/ R558BLUE BR 470K
R1050;
R556 I C556i001( .01
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R534
V9C6AViiB -r
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C55501
T P/I=+820V
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3 6 12 2 5rOT PIXEL(
--4--115 T. PiEL.T.PEEDZ
160V
T.P.
700V 700V.2c525.-IC526 C527
1470 1470
fiit74
1581470801.4K V
22Kv(MIN BRT)
700V
R538470K
1;5391M
BLU SCR
INRED SCR
R543GRN. SCR.
1M
CON vERGENCE YOKEBELIE RASTER SIZE GREEN RASTER SIZE
DIFFMNIIIIVERTICAL I I VERTICAL I
r - -11202
,..:
-
1412GENERALELECTRICColor -TV ChassisN-1
APRIL 1972
ELECTR/DEALERONIC 7 rifvETL7.4 ACTECHNICIAN
COMPLETE MANUFACTURERS' CIRCUIT DIAGRAMSAND TECHNICAL
INFORMATION FOR 5 NEW SETS
SYMBOL DESCRIPTION GENERAL ELECTRIC PART NO.
R 244 -varistor I ma, ±15%, @850n EP13X2R246 -varistor. lma,
±15%, @575v EP13X3R260-thermistor, 500K, ±10%, (625" EP14X20R406
kl.xon, TOR 200 cold./5K hot EP39X4C402A-2000, +100%10%, 350v,
electro EP31X18C40213-1000, +10096.10%. 175u, electro
EP31X18C402C-50uf, +100%.10%, 175v, electro EP31X18ohm 2000f.
*100410%, 350v, electro . . EP31X18C4038-10060, +100%10%, 1/5v,
electro EP31X18C403C-50 uf, +100%10%, 175v. electro EP31X18R165
-control, AGC, 1K EP49X44R171 -control, triple contrast 500K, 20%
EP49X50R176 -control, triple brite, 200K, 30% EP49X50R177 -control,
50K. brite limit adjust EP49X52R236 -control, H V adj, 350K ...
FP49X46R242 -control 20M, focus adj EP49)(51R254 -control, triple,
vert hold, 500K, 30% EP49X50R257 -control, dual vert height, 1M
EP49X45R263 -control, dual, vert lin. 100K EP49X45R309 -control,
on/off vol, 1M EP49X3R511 -control, color, 500n EP49X54R513
-control, tint, 2K EP49X55R526 -control, dual, red balance, 2K
EP49X594R529 -control, dual, blue balance. 2K EP49X5940152
-transistor, NPN, silicon AGC keyer EP15X70200 -transistor, NPN.
silicon, sync. amp EP15X30201 -transistor, horiz, AFC EP15X70202
-transistor, horiz react EP15X90203 -transistor, horiz osc
EP15X90204 -transistor, horiz driver EP15X100501 -transistor, NPN,
silicon. burst amp EP15X50502 -transistor, NPN, silicon, blanking
driver EP15X9L157 -coil. 4.5MHz trap w/core EP61X3L159 -coil, delay
line EP36X50L201 -coil, horiz osc EP36X55L302 -coil, quad
EP36X52L401 -I ine choke, 3.2-4.1MHz EP36X571201 -xf ormer. horiz
output EP77X71202-xformer, vert output EP64X71301-xformer, audio
interstage EP36X341302-xformer, audio output EP64X81401-xformer,
filament EP64X91 -501 -cods, chroma bandpass EP36X2T502-xformer,
chroma demod EP36X65
fuse, 4 amp slow.blo (F401) EP10X7fuse, .6a slow'blo 1F4021
EP10X5fuse, 3a fast.blo 1F4031 EP1OX4yoke. deflection EP76X5yoke,
convergence EP62X 18
C407.22
r - -
L
VHF
L1351TUNER
-I R140
33
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200
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L145
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RI620
R14710K
1.001
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PRODUCT SAFETY NOTICE
PRODuCT SAFETY SHOuLD SE CONSIDERED WHEN A COMPONENtREPLACEMENT
IS MADE IN ANY AREA Of A RECEIVER. THE SHADEDAREA OF THIS SCHEMATIC
DIAGRAM AND THE PARTS LISTDESIGNATE COMPONENTS IN WHICH SAFETY CAN
BE OF SPECIALSIGNIFICANCE. IT IS PARTICULARLY RECOMMENDED
THATGENERAL ELECTRIC CATALOGED PARTS BE USED FOR
COMPONENTREPLACEMENT IN THE SHADED AREAS OF THIS SCHEMATIC.
USE OF SUBSTITUTE REPLACEMENT PARTS WHICH DO NOTHAVE THE SAME
SAFETY CHARACTERISTICS AS RECOMMENDEDIN FACTORY SERVICE INFORMATION
MAY CREATE SHOCK. FIREOR OTHER HAZARDS.
F4033 AMP R402
54014 F 7W Y401R4032701w
R405
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1 KIR C 406 -'-1'1002.7 10705v./
L402 001
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1
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S402
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10,4 +F285V
(-
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F402
C04 -- 1402+ 402A + SOURCE200uf --C034.001 T -1350V -I 20081* -
,..- = 350V
VI3 VII VIO V8 V9 V5190E3 21LG6 CLUB 351(6 6AVII IICFII
+500V SOURCE°DIVIDER OUT OF 820VBOOST CIRCUIT
4-820V BOOST SOURCEPIN 8 OF NV I
Y 203= c2
R404330"..R412310/1.
AC402C4.1.4C403C
XC5".1/1 P5V
T401
12 12/\I
Tt4iiV14CRT r- - -
Vi V2 I V3R401
IM I MO ILJ8_12aARII
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4-15V
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1. VOLTAGE MEASUREMENTS ARE 20.000 OHMPER VOLT METER READING
TAKEN WITH RESPECTTO CHASSIS COMMON. RECEIVER TUNED FORNORMAL
PICTURE AC LINE VOLTAGE SETAT
PIN 6 120V. READINGS MAY VARY *10% FROM THOSEHVT SHOWN.
VSAPIN a
2 WHERE ON -SIGNAL AND OFF -SIGNAL MEASURE-MENTS DIFFER. OFF
-SIGNAL VOLTAGE APPEARSIN ITALICS BELOW ON -SIGNAL VOLTAGE.OFF
-SIGNAL VOLTAGES MEASURED WITH ANTENNATERMINALS SHORTED
TOGETHER.
ON -SIGNAL VOLTAGES AND WAVE SHAPESTAKEN WITH NOISE FREE
SIGNAL
111 VOLTAGE VARIES WITH CONTROL SETTING
AGC 2.6V 0152AGC # INDICATES PRODUCTION CHANGE
+ 285v
.x. ro v. FROMK. y6--1110 ---11110-111
UNLESS OTHERWISE NOTED11.1,000 M1.000.000CAPACITORS MORE THAN
IuulufCAPACITORS LESS THAN IufRESISTORS ARE 1/2 WATT
V 4B V6AI 31.L
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j01 I. L302 IC310
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V4 V6 V78C1311 IOTIO ILU6
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C4I7 C416 C4181 VHF I 820 I 820 120I TUNER ...L -J
+I40V
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+140V
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R20222K
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3RD IF
I 25V
I1w 1.2VRI54120
1
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AUDIO OUT
1 OV .285V 1302 3 2.'
Viv591-11
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390
L=_ _ _JC308
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5V 9
+140V
+140V +285v
COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER 1 EAST FIRST
STREET, DULUTH. MINNESOTA 55802
-
33. 25 VOLT BtRIPPLE et CH14A, 34. AGC PULSE, TERMINAL P,28V
11-p, 35. BURST. AMPL., KEYING PULSE, 36. PLATE, (PIN 4) VERTICAL
OUTPUT0.025V P -P, VERT. HORIZ. (PWSI I TERMINAL T (POTS[) (VI)AC,
1150V p -p, VERT. (P0152)(ON SCHEMATIC)
41. HORIZ. SCREEN, (PIN 3) V3,40 P -P, HORIZ. (PWS2)
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COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER 1 EAST FIRST
STREET, DULUTH, MINNESOTA 55802
-
1411AIRLINE
Color -TV ModelGC1 12102A
APRIL 1972
I. BASE, TPB3, 1st VIDEO AMR.(010), 2V P -P, VERT. (PWSI)
-qb -ob..
2. TPA2, SOUND DETECTOR0.25v P -P, VERT. (P051)
3. COLLECTOR, Iv VIDEO AMPL.,(010), WV P -P VERT. (Pw51)
4. GRID, HORIZ OUTPUT, V6, "AB",335V P -P HORIZ, (PW52)
EMI5. PLATE TIN 10)2nd VIDEO AMPL.,
50% CONTRAST, 100V P -P VIDEO,150V P -P BLANKING (P.152)
6. BASE, SYNC. SEPARATOR, (01 II,7V P -P, VERT. )PWSI)
7. COLLECTOR, SYNC. SEPARATOR,(0 11), 6V P -P, VERT. (PWSI)
ELECTRONIC L7 r-Ir#ETTECHNICIAN /DEALER
COMPLETE MANUFACTURERS' CIRCUIT DIAGRAMSAND TECHNICAL
INFORMATION FOR 5 NEW SETS
9. RIPPLE at "NN", I8V P -P, 10. RIPPLE at "RE", 1.6v P -P,VERT.
(PWS2) VERT. (Pw52)
13. AGC PULSE, BASE, AGCGATE, (09), HORIZ.(PWSI)
14. COLLECTOR, 1,1 BANDPASS AMPL.,(013), BURST 8V P -P,
CHROMA
P -P, HORIZ. (PW51)
17. COLLECTOR, 2nd BANDPASS, RJI41 18. EMITTER, 2nd BANDPASS
AMPL.0.22.1 P -P, 1101112. (P5851) (014), CAROM* 0. IRV
P-P,Htliti2
OW51)
21. JUNC11()N RFC( AND RF46,2.2V PP,OVERALL, HORIZ.(PWS2)
22. OUTPUT R -Y Al.'NO COLOR, 90.(R/52)
o!h.'174
I V
II. RIPPLE or CH IOC, 0.1v P -P, VERT. 12. COLLECTOR, El -Y
DEMODULATORUNDERSIDE CHASSIS NEAR TM73 (020), "M", 8.2V P -P,
HORIZ.ION SCHEMATIC) (PWSI)
15. JUNCTION RC43 AND CRC 44,8v P -P, HORIZ. (PWS1)
19. EMITTER, B -V DEMODULATOR1020), 0,7V P -P, HORIZ.EMITTER, R
-V DEMODULATOR
(0211, mORIZ.(PwS11
A
II
VL
'719
oLe.OUTPUT R -V AmPL,WITH COLOR, 25,(PW52)
16. BASE, 2nd BANDPASS, (014),CHROMA 0.13V P -F,
HORIZ.(PWSI)
99. (-01 (EC TOR, R-1, DEMODULATOR(021), "N", 1.5V P -P,
HORIZ.(pwS1)
a -y AMPS , V4, TPF4,OLOR, 280V P -P, HORIZ.
(PW52)
25, OUTPUT G -V AMPL., VI, TPF3,WITH COLOR, 150V P -P,
HORIZ(P.(52)
29. COLLECTOR, BURST AMPL. (012),45V P -P, HORIZ. (PWSI)
LA9
LA2rn
LA20
C!) CULA28
01 02ST IF 2ND IF
1.82
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==./3
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CHID
108 PY50 4110./11,9I CABLING.
LD 08 LCISAGC AMP.
C LIM1TERf;\
0 012BURST AMP.
O
0
022 -jAUDIO
OUTPUT
CH8
TH73VERT. OUTPUT
FH5.5AMPFUSE
V2 A&B2ND VIDEO AMP
SYNC AMP.
VIA&BVERT. OSC.
VERT. OUTPUT
Li
0 TCI
0142ND BAND PASS
TP02
017REACTANCE()
016 a aKILLER Amp.
3.58141.1. Ole
TC29 0 BUFFER 0015 3.58 MHZ
MORI Z. OSC.BLANKING C 02,
0013 R Y QEMOD.1ST BAND PASS
83'19 DEMOD.
9043338 NHCRYSTAL
U
V4 A,B&CR- Y AMP.G- Y AMP.
B- Y AMP.
V3A&BHORIZ. OSC.CONTROL &
HORI Z. OSC.)(X TPFI
h. FOCUS ZZTAPSn n n
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L
DEFLECTION
YOKE SOCKET
3872
VT
H.V. RECT.
RF 37H.V. ADJUST V6 VS
HORIZ. OUTPUT DAMPER
FH74 .35 AMP FUSE
:6. COLLECTOR, HORIZ., BLANKER,(015), 3.3V P -P, HORIZ.PWSI)
27. BASE, HORIZ. BLANKER, (015),5.81 P -F, HORIZ. (PW51)
30. COLLECTOR, 3.58 ME. BUFFER, 31. COLLECTOR, 3.58 MHz
OSCILLATOR(0 19), 22V P -P, BASE 2.3V P -P, (OM, I IV P -P
(PWSI)EMITTER 2.2V P -P, BASE 020 AND021 6V P -P (PWSI)
VHF TUNER _94C444-2
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8. PLATE (PIN 4) SYNC. AMPL.,(n), 60v P -P, VERT. (PWS2)
COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER 1 EAST FIRST
STREET. DULUTH, MINNESOTA 55802
-
1.221401
TO Pw200-E4(6E)
ANT TERM.0 0
UHF
C-70
96. 2:02 IkK4C 4
140(troC 6 0-~ ,4e6t5VVHF CS
C3C15
ELECTRONICTECHNICIAN/DEALER
2firff=rfiCOMPLETE MANUFACTURER S' CIRCUIT DIAGRAMSAND TECHNICAL
INFORMATION FOR 5 NEW SETS
SCHEMATIC NO. SCHEMATIC NO.
AIRLINE 1411 SYLVANIA 1413Color -TV Model GC1-12102A
GENERAL ELECTRIC 1412Color -TV Chassis N-1
RCA SALES CORP. 1410TV Chassis KCS188 Series
Color -TV Chassis D17-1-2
ZENITH 1414TV Chassis 12CB12X
v2003SOUND IF
'/2 6GHBA46V 46 8205 C205
C20( 3 1112041 12 -1-A
20E.0i
R202
0/ i80082K =
faicis,4
T201 A
621233001ivy
L210 T205
10--1
.0 0217E04 8
IL202C220.11000
E
C2228
204
C204z `,"39 is o
R204(8K
V 202A504.1140 DE T1/2 17 BFII170v 7
0207- OV22001 8AV38
C200I 1000
E 4.TO R IC)
6206 13E1R208 560N470 (/7 3
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--E.F R )12
1201 #207 r° VOLUME-704 I MEG
V203I ST PIX IF /4/v41'-E. 7
9
2
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E
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V
3 0223/31 1680
C2210,1
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6214
f15002*
j_ #238 P239= 820K (MEGE32
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r
fit°L4
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V2028AL171,' OUTPUT
1/2 17BFI 1/3201 1C2i5
Ea i 2°V .1 .022t MA
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225
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1410RCA SALESCORP.TV ChassisKCS188 Series
SYMBOL DESCRIPTION
C101-3 section elec .
.C101A-2500/175vC10113-4000/1754C101C-504d/175v
APRIL 1972RCA PART NO.
133082
F101 -fuse -5a, 150v 118969R112 -control volume 132956R113
-control bright 132957RF101-fuse resistor. 2K 121086S101 -control.
on/off 132956T102-Kformer, high voltage, horiz 132962T103-xformer,
vent output 132970T104-xformer, audio output 124275
yoke deflection 132971L207-hora hold 125129R226A-control
contrast/vert holdR226B-control contrast/vent holdR257 -control
vent size13260 -control vent linRV201-varistor7201A-4.5MHz
114489T201 B-4.5MHz 114489T202 -sound IF 118411
JACK7203 -quad 118410
INCUJOED ON SOME MODELS
1226A1526 CONTRAST
25K
38E:9 120,8;iler
$C24
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4 v20644
T208 3 47T2ND IF7
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VIDEO OUTPUT_02244200
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co..
C251 11269 680 43144_1 E470 560K = /01V-(001.
58201
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R202 33001 168KC253 1270
= 02545.056
25V2
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GGH 8A
820422K
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3900 560K
150K
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7SOK 350K
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nUTPuT9 17JZ8
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5- IO2iNTERLU;It
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33GY7ON -OF5
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0RF101
G.
2
11028.2U14
L 1038.2014
Vo0113
DAMPER
33GY 7
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r TO PW200E 31 PM
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DAMPER33617
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T102
TO Pw200.106C111 (3011.0/
(3130VITO PW200-E)4
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32
11
7-11-0.1182-1 V
(3E) TOPW200 Eli
(BF)
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(5N1
C102
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3 VERT
Iit
v103
I3KV *1.5KV
33081330812122321223
NOTES:
I y IWO
2 ALL RESISTANCE VALUES ARE IN OHMS3 ALL CAPACITANCE VALUES LESS
THAN I0 ARE IN
1/0 10 AND ABOVE ARE P UUF, EXCEPT AS 1.201-GATED
4 ALL RESISTORS ARE WATT. EXCEPT AS INDI-CATED
5 *INDICATES 5%6 FOR CONTINUED SAFETY REPLACE THE FOLLOWING
-SHELF TYPE" COMPONENTS WITH ORIGINAL TYPEOR RCA APPROVED TYPE
ONLY11000 IDENTIFIES SPECIAL WIREWOUND RESISTORS
attIDENTIFIES SPECIAL FILM RESISTORS.IDENTIFIES SPECIAL
CAPACITORS(PLACEMENT PARTS LIST IN THIS SERVICE
DATA FOR REPLACEMENT PARTS
7 FOR CONTINUED X-RADIATION PROTECTION. REPLACE THE PICTURE TUBE
AND HIGH VOLTAGERECTIFIER WITH ORIGINAL TYPE OR RCA APPROVEDTYPE
ONLY
5 VOLTAGES ARE MEASURED TO CHASSIS GROUNDWITH A -VOLTOMYYST- WO
SIGNAL) AND SHOULDHOLD WITH* 20% AT RATED SUPPLY VOLTAGE.
v206 V202 V201VERT OuTE SOUND GET( SOUND IFvERTOSC Au010 OUT
SYNC
17,128 178F11 EGHBAE23_ _E.-2 E42 43 E51
2
r ------KFt 137 7 %nosKINESCOPEI 36145 ECG8A 12CNP4A
3 4 5VW
12 5-y.0 249
.Ck
V2042ND RIX IF
4JC6AE2t- 1201
V203isT Put IF46TE
E
5 5 4C260
Ii000 V20510001
VIDEO OUT7
HORIZ OSC6JV8 8F07/N
E29A (33C EL3 A e0 0 4II 014 5
PW200
AEC 1( V207
1 C248)CO3
COPYRIGHT 1972 BY ELECTRONIC TECHNICIAN/DEALER I EAST FIRST
STREET. DULUTH. MINNESOTA 55802
-
PROVIDES YOU WITH ACOMPLETE SERVICE FORALL YOUR TELEVISIONTUNER
REQUIREMENTSAT ONE PRICE.
UNER REPAIR
VHF Or UHF Any Type $9.75.UHF/VHF Combo $15.00.
In this price all parts are included.Tubes, transistors, diodes,
and nuvistorsare charged at cost.
Fast efficient service at our four con-veniently located service
centers.
1 year guarantee backed up by thelargest tuner manufacturer in
the U.S.-SARKES TARZIAN, INC.
All tuners are cleaned inside and out,repaired, realigned and
air tested.
TSG
TUNER REPLACEMENT
Replacement Tuner $9.75.
This price buys you a complete newtuner built specifically by
SARKES TAR-ZIAN INC. for this purpose.
The price is the same for every typeof universal replacement
tuner.
Specify heater typeParallel 6.3VSeries 450 mASeries 600 mA
All shafts have the same length of 12".Characteristics are:
Memory Fine TuningUHF Plug InUniversal MountingHi -Gain Lo
-Noise
If you prefer we'll customize thistuner for you. The price will
be $18.25.Send in original tuner for comparison pur-poses to our
office in INDIANAPOLIS,INDIANA.
TUNER SERVICE CORPORATIONFACTORY -SUPERVISED TUNER SERVICE
MIDWEST 817 N. PENNSYLVANIA ST., Indianapolis, Indiana TEL:
317-632-3493(Home Office)
EAST 547-49 TONNELE AVE., Jersey City, New Jersey TEL:
201-792-3730SOUTH 938 GORDON ST., S.W., Atlanta, Georgia TEL:
404-758-2232SOUTH-EAST 1505 CYPRESS ST., Tampa, Florida TEL:
813-253-0324WEST SARKES TARZIAN, Inc. TUNER SERVICE DIVISION
10654 MAGNOLIA BLVD., North Hollywood, California TEL:
213-769-2720... for more details circle 135 on Reader Service
Card
APRIL 1972, ELECTRONIC TECHNICIAN/DEALER J 19
-
PHILLIP DAHLENEditor1 East First Street 'Duluth, Minn.
55802(218) 727-8511
ALFRED A. MENEGUSPublisher757 Third AvenueNew York, N.Y.
10017(212) 572-4838(212) 572-4839
TOM GRENEYPublishing DirectorJOSEPH ZAUHARManaging EditorBERNICE
GEISERTAssociate EditorGAYNELLE DAVIDSONProduction ManagerJOHN
PASZAKGraphic DesignLILLIE PEARSONCirculation FulfillmentJOHN
KESSLERManager, Reader Services
MANAGERS
JIM SMITH43 East Ohio StreetChicago, III. 60611(312)
467-0670
CHUCK CUMMINGSAd Space South/West613 North O'ConnorIrving, Texas
75060(214) 253-8678
KEN JORDANDONALD D. HOUSTON1901 West 8th StreetLos Angeles,
Calif. 90057(213) 483-8530
CHARLES S. HARRISONCY JOBSON57 Post StreetSan Francisco, Calif.
94104(415) 392-6794
ROBERT UPTONTokyo, JapanC.P.O., Box 1717
ELECTRONICTECHNICIAN/DEALER
APRIL 1972 VOLUME 94 NUMBER 4
This month's cover photo, supplied through the courtesy of
Blonder -Tongue Laboratories,Inc., shows Isaac S. Blonder (left)
and Ben H. Tongue (right) explaining the theory of Satel-lite
Telecommunications to George E. Queen, marketing manager of
Homestead Enterprises.The diorama shown is a replica of Fairway
Townhouse Living at Spring Lake Heights, N.J.More information
concerning space-age TV is included in the article beginning on
page 64.
3 TEKFAX: Up-to-date schematics for easier servicing.22
EDITORIAL: Three Brothers.
24 LETTERS: Pertinent comments concerning past issues.26 NEWS:
Events of interest to our industry.30 READER'S AID: What you need
or have for sale.
34 NEW AND NOTEWORTHY: Merchandise of special interest.
FEATURES
41 TEKLAB REPORTPart II in our description of interesting
features found in Panasonic's Model CT -771Portable Color -TV
Set.
48 PANASONIC'S MODEL SP -10 TURNTABLEAnother first-hand report
concerning unusual features observed in a new, high -qualityaudio
product.
51 WIDEBAND DISTRIBUTION EQUIPMENTSome basic principles
concerning CATV systems that you should know if your cus-tomers are
to receive the best reception possible from their installation-by
D.Lieberman.
60 GLAD TO MEET YOU "SLIM JIM"Our evaluation of a new approach
to aerosol containers which should make your ser-vicing job
easier.
62 TEST INSTRUMENT REPORTReviewing specifications for RCA's
WR-515A Master Chro-Bar Generator.
64 GUEST AUTHOR: SATELLITE TV ... COMING DOWN TO EARTH!Isaac S.
Blonder-co-founder and chairman of the board of Blonder -Tongue
Laborato-ries-as a member of the EIA Tr -34 Committee for satellite
TV, has some exciting in-formation concerning some revolutionary
home antenna systems that you may soonbe installing for
international TV reception.
66 COLORFAX: Tips for easier colcr-TV set repair.
68 NEW PRODUCTS: Instruments and components to make your job
easier.
71 DEALER SHOWCASE: These items may increase your sales
revenue.
73 TECHNICAL LITERATURE: Informative material that you may
need.
74 ADVERTISER'S INDEX: Manufacturers concerned about you.
75 READER SERVICE: A source of additional information.
[YRI A HARCOURT BRACE JOVANOVICH PUBLICATION "AI
HARCOURT BRACE JOVANOVICH PUBLICATIONS: James Milholland, Jr.,
Chairman; Robert L. Edgell,President; Lars Fladmark, Senior Vice
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ELECTRONIC TECHNICIAN/DEALER is published monthly by Harcourt
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POSTMASTER: Send form 3579 to ELECTRONIC TECHNICIAN/DEALER, P.O.
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20 ELECTRONIC TECHNICIAN/DEALER, APRIL 1972
-
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EDITORIAL
Three Brothers
Three brothers were told that within a few years they would be
traveling to a foreign country.In preparation for the journey, the
first brother obtained several books listing the mostcommonly used
foreign phrases, setting all of these phrases to memory. He then
practicedso that after a time he became highly skilled at
recognizing the foreign phrases andreturning other appropriate
phrases.
The second brother did not take the time to memorize as much
information as the first. Hemerely learned the meaning of many of
the more commonly used foreign words. Andwith the time that he
saved in not memorizing more, this brother studied techniques
forcombining the words into useful sentences.
The third brother followed basically the same techniques as the
second, except that he spentmore time studying-thus learning more
words and more effective ways of combiningthem into sentences.
Upon arriving in the foreign country, the first brother
discovered that although his manyphrases proved useful, too
frequently the people speaking to him failed to use the samephrases
that he had learned. He worked hard to memorize more and more
phrases, but therewas much confusion and frustration-the first
brother finally deciding to call it quitsand leave the country.
The second brother initially found things even a little more
difficult than the first brother.And at the start he even borrowed
a few of his first brother's stock phrases. But hispreparation did
prove helpful and in a short time he was able to understand most
foreignsentences and was able to respond in sentences that weren't
too awkward.
The third brother also found it helpful to know a few of the
stock foreign phrases, but hadno basic difficulty in adjusting to
the foreign language. Better yet, soon he was so competentthat he
was even able to confidently address large groups.
As you have probably guessed, the three brothers represent three
men with varyingelectronic backgrounds. The first brother was a
semi -skilled technician, who could servicesome of the more typical
problems encountered in a defective circuit, but who
becameincompetent if the trouble happened to be something out of
the ordinary.
The second brother was a technician with some background in
theory, and with practicehe was able to handle nearly any service
problem that he encountered. While the third brotherhad progressed
to the point where he was not only able to service electronic
circuitry,he could even design it.
Several years ago a service dealer asked my advice concerning
the selection of a newpart-time employee. I suggested two
high-school students. One had some knowledge of basicelectronics
and was even able to design simple tube circuits (there weren't any
practicaltransistor circuits at that time). The other had a great
deal of practical experiencetearing down old radios (a lot of
people-including me-started out that way) and couldfix some of the
more obvious circuit defects.
The service dealer hired the second student, feeling that the
first would waste too muchtime tinkering to make the product even
better, while the second would stick to his jobof checking tubes
and more obvious work-that's where the money was.
I am sorry to report that with the advent of color TV and
solid-state circuitry, this servicedealer found it progressively
more difficult to service the new circuitry encountered andfinally
entered another profession.
While taking part in one of the discussion groups a year or so
ago at a National ServiceConference, I got into a rather heated
debate with a service dealer who felt that all
electronictechnicians should disregard theory-since such isn't
needed for effectice servicing.To us that is like saying, "You
don't have to know how a TV set works merely to fix it."We feel
that this is like the philosophy of the first brother, who
memorized the servicehints in Technical Digest, Colorfax-and all
the other sources of service information that hecould get his hands
on-but who never took the time to learn some of the basic
theory
22 I ELECTRONIC TECHNICIAN/DEALER, APRIL 1972
-
concerning why these service tips worked. If he encountered a
new circuit that had not yetbeen described in a trade journal or
service literature, he wasn't able to quickly sketcha portion of
the defective circuit; and knowing what should be expected from
suchan assortment of components, service it.
It is our position that electronic technicians must have an
understanding of some basictheory in order that they accomplish
effective servicing and maintain their competency withthe
development of increasingly complex circuitry. Although beautifully
designed, howmany electronic technicians are now ready to service
the portable color -TV set described inthis and the previous issue
of ELECTRONIC TECHNICIAN/DEALER? The public wants tobuy the most
advanced electronic products available. Why? Because typically such
productscost less and provide better service. Color -TV sets are
now less expensive, have betterquality pictures, greater stability
and last longer than the earlier B/W -TV sets. The techniciansthat
couldn't keep up, that ignored the need for theory, that made their
money strictlythrough tube testing and obvious maintenance, are
becoming a rarity-most of them havingalready been forced out of
business.
When speaking of theory, we do not suggest that anyone but the
designer (the third brother)be concerned with theory to such depth
that it include the valence -electron configurationsassociated with
the doping of semiconductor materials, the use of calculus
fordetermining various factors in the nonlinear operation of basic
circuitry, or even some ofthe complex equivalent circuits derived
as an aid in calculating circuit function over variousfrequency
ranges. We would be the first to agree that such use of theory is
not yetneeded for effective servicing-and hopefully never will be.
However, when it comes todetermining whether a coil and capacitor
combination is being used to trap out interferencesignals or
enhance the signal required, then its the level of theory that the
averagetechnician should know.
Other examples of the theory that an electronic technician
should know-if he is going tomake the grade-are included each month
in ELECTRONIC TECHNICIAN/DEALER as we presentquestions and answers
of the same type as those found in the CET examination.
The CET examination is not intended to be a test that all
electronic technicians will be ableto pass. The test would serve no
purpose if the first brother, described earlier, was able topass
it. For he didn't have the background to make a claim to a future
in professionalelectronic servicing. Only the second and third
brother should be able to pass theexamination. Otherwise, the test
would be watered down to the point that one would nolonger be able
to boast, "I took a CET exam and passed it! I feel confident of my
future in
electronics!"
We were appalled by one of the resolutions passed by The Western
State Conference lastJanuary in Sacramento, Calif., stating that
the CET Test should be practical and contain lesstheory questions.
That's like saying, "Open the door to Brother One." It might be
niceto be a "good guy" and let everyone in, but will the TV -set
manufacturers also be good guysand produce obsolete products so
that the first brother can service them? And will thepublic
continue to accept the first brother's less effective servicing
techniques, giving onlyeasy state licensing examinations-if
requiring any exam at all?
We feel that the current CET examination contains the proper
balance of theoretical and"practical" questions. (Sections I, II
and III covered thus far concentrate a little more ontheory than
some of the other sections.) There has been a tremendous response
to the current
CET testing program (note this month's news section), and in
some parts of the countryvirtually the entire membership of some
local associations has passed the CET examination
(note last month's news section). So why make it a test that
anyone can pass?
ELECTRONIC TECHNICIAN/DEALER is dedicated to the task of helping
all electronic technicians
(whether or not they choose to take a CET examination) so that
they have the skills
required (both practical theory and nut -and -bolts knowledge of
past problems) for success
in the electronic servicing profession.
APRIL 1972, ELECTRONIC TECHNICIAN/DEALER 23
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Reader comments concerning pastfeature articles, Editor's Memos,
previousreader responses or other subjects ofinterest to the
industry.
Too Much Theory in CET ExamI have read with concern as well
as
interest, many of the letters concern-ing the CET program, but
when itcame to the example given of the CETtest, I just had to
write and state myopinion.
It has been about 32 years since Ifirst went to electrical
school, andfrom there to radio school, and thento instruct for
about a year. Needlessto say, I had all the basic electricaland
electronic theory; and so with thisbackground and books, I also
learnedthe repair of TV, color TV, and solidstate as they came
along.
I have been servicing in my ownshop, with the same people in
thesame location for over 25 years, andnever in these 25 years
would I havehad any occasion to use the questionsor answers to
questions one, two orfour in the Section I, Basic Mathe-matics
test. In fact, I couldn't answerthem without looking up the
informa-tion required. Why should I relearnwhat I had no occasion
to use andhave forgotten in the past 30 years?For example, the No.
1 question, "A0.01µf capacitor has what impedanceat 5kHz?" Now
think, what on earthwould I use this information for inservicing?
You might just as well askan auto mechanic, "What is the fric-tion
loss in ft -lb of energy due to ringfriction against the cylinder
walls at40 miles per hour?" What I'm gettingat is that it's maybe
fine to know ifyou want to impress someone withyour math; but
certainly to be agood TV technician requires so manythings to
remember, and think about,that it's foolish to fill your mind
withthese things. Besides, this is an en-gineer's problem. I even
wonder inmost cases, where different typewaves, different peaks and
even some-what leaky capacitors are present, thatany answer would
be very correct.Also, where in any circuit commonlyused do you find
the capacitor theonly thing to take into consideration isthe
impedance?
With this trend of thought, you canalso see the very
unimportance of No.2 and No. 4 in the test. The testshould not be
like a school test, buta testing of technical servicing ability.Why
not make it about things in-volved with servicing.
There are so many things one hasto learn to be good enough and
fast
enough to earn a living, at reasonablewages, in servicing!
Contrary to whatS.F.C. Ronald Bromwick says in his let-ter, I'm
sure that with time he will findthat besides understanding theory
andmath, being a "symptoms mechanic"is very important in this.
Symptomsare the key to almost every servicingproblem. What you see
and hear arejust as important to a TV radio tech-nician as they are
to a doctor in cur-ing the ill.
Getting back to the test, questionNo. 3 in my opinion from a
practicalpoint of view should be put different-ly. I think the
question should givethe resistor, in most cases we knowthis anyway,
and ask what the currentthrough it would be. This problem
inservicing must be solved many, manytimes. In servicing you very
seldommeasure the current because it's notpractical, almost all
measuring is involtage and resistance because theycan be done more
easily without dis-connecting, and thus find the current.Also, due
to varied frequencies, itwould be almost impossible to get
ac-curate meter measured current. Whatis important, I feel, is that
the trendof thought should be strictly in thedirection of
servicing.
As a whole, I can't help wonderingwho makes up the questions for
theexam? I can hardly believe they arevery service minded or
service ex-perienced, if this is going to be thetrend of all the
questions in the exam.As it is, I would see no point in goingback
to my studies to pass this test. Itwould not prove a thing as to
mycapability. Sorry and very sincerely,
CHARLES F. MORRISCHUCK'S RADIO & TV
You are not alone in your opinionthat there is too much theory
in theCET examination. As indicated in myEditor's Memo (which was
writtenprior to our receipt of your letter),even the majority of
those voting atThe Western State Conference holdyour position.
However, as also indi-cated in my memo, there are also oth-ers
(including myself) who feel other-wise-believing that it is
importantto have some understanding of the"lighter" theories
related to circuitryserviced. ELECTRONIC TECHNICIAN/DEALER has had
no direct influence inthe writing of the CET examination,it having
been written by a committeeof service dealers who have manyyears of
experience in servicing con-sumer and commercial
electronicproducts.
I also had to refresh any memorywhen re -typing CET examination
typecopy for publication in our news sec-tion-hut it didn't require
a great deal
continued on page 32
24 ELECTRONIC TECHNICIAN/ DEALER, APRIL 1972
-
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That's why exact capacitor ratings are important. Theyhelp you to
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EASIE selec'ion of replacement ca-pacitors for Color TV is
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APRIL 1972, ELECTRONIC TECHNICIAN/DEALER 25
SPRAGUE®THE MARK OF RELIABILITY
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Name
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Address
City
NEWS OF THE INDUSTRY
Electronics Industry CouncilHolds Fifth Official Meeting
The fifth official meeting of the Electronics IndustryCouncil
was called to order on January 28th by chairmanDick Glass, CET. He
welcomed the council members andguests, and thanked the trade press
for its help in promot-ing the council idea and the projects of
EIC. He pointedout that the success of any single project of the
EICwas not nearly as important as learning to work togetherfor
mutual benefit, and the betterment of the industry forthe
consumer.
Mr. Joe Groves of the Electronic Industries AssociationConsumer
Product Div., and Howard W. Sams Co., re-ported on parts
availability. He mentioned that during thepast period the Sams Co.
had made efforts to acquire addi-tional information directly from
parts distributors and repson a face-to-face basis. He indicated no
great amount ofsuccess at this time, but that the program was being
im-plemented and additional work would be done during thenext
period. Mr. Groves also illustrated the moves thatthe industry has
made during the past few years to stan-dardize replacement
parts.
Frank Moch, executive director of NATESA, discussedNATESA's
"Town Meeting" program. He reported thatmanufacturers' reputations
for parts service vary widelyfrom place to place. He emphasized the
proliferation of"special" parts and the problems of "re
-engineering"sometimes needed to use so-called "standard"
parts.
Joe Risse of International Correspondence School, rep-resenting
the Society of Broadcast Engineers, noted that
Why pay an answeringservice when you can
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26 I ELECTRONIC TECHNICIAN/DEALER, APRIL 1972
the FCC is investigating the problem of FM interference.It is on
their docket No. 19183.
Leo Shumavon, president of NATESA, reported onservice
association cooperation. He mentioned that co-operation is at an
all-time high, and urged better under-standing of the problems
among manufacturers, distribu-tors, dealers and particularly the
news media. He men-tioned the upcoming August joint convention
between
NATESA president Leo Shumavon makes a presentation on service
asso-ciation cooperation at the all day affair. Photo courtesy of
Dick Glass,CET.
NATESA, NEA, ETA of Louisiana and ISCET, whichall groups were
working on. Mr. Shumavon also noted thatwider publicity of the
importance of service is needed,especially by TV broadcasters and
by the commercial press.Some discussion was held concerning the
need for expand-ed service association membership. Gail Carter,
executivevice president of NEDA, noted that the service
associa-tions had no monopoly on the problem of a few joiningand
doing the work for the benefit of many.
Morris L. Finneburgh, Sr., EHF, reported that he hadcontacted 10
antenna manufacturers for support in theTelevision Reception
Improvement Program (TRIP)which we have covered in previous news
reports. Of thatnumber, only three manufacturers have responded.
Mr.Finneburgh therefore offered to resign his chairmanshipof the
antenna manufacturers subcommittee of TRIP. Mr.Shumavon made a
motion that the EIC not accept Mr.Finneburgh's resignation. And
although the motion waspassed unanimously, Mr. Finneburgh did
resign. Mr.Finneburgh then offered his total support to EIC and
theTRIP program in the future.
John Norton, acting secretary, clarified the resignation,stating
that Mr. Finneburgh has resigned from the commit-tee and the
subcommittee; and EIC has accepted the resigna-tion in a desire to
increase cooperation by manufacturersother than FINCO, and not
because of any feeling that hewas not doing an excellent job.
Mr. Groves suggested that Tom Surber of Sams Co.might fill the
position vacated by Mr. Finneburgh. Mr.Surber was elected.
George Bartlett of the National Association of Broad-casters
reported on progress of the broadcasters regardingTRIP. He said
that progress was slow, due to staff prob-lems.
Sid Sabel, chairman of the TRIP program, showed ma-terial that
has been produced by NEA, consisting of twoforms for technicians to
use on service calls that providechecklists to show the homeowner
just what may be neededto improve reception, as well as the cost.
Also mentionedwere Blonder -Tongue Co's "Solution" publications
whichhave valuable ideas directed towards dealers for makingmoney
and understanding the antenna business.
-
Emmett Mefford, CET, NEA executive committee chairman
(lookingtoward camera) examining the TRIP booth at the NARDA
showcase.Photo courtesy of Dick Gloss, CET.
Don Martin, editor of ELECTRONIC SERVICE DEALER,reported that no
real decision had been made by many ofthe groups as to possible
support of the Hall of Fame.Support is needed before future work
can be done.
Sid Sabel presented a program for manufacturers toprepare in
-shop training slides or films for technical train-ing, quickly, on
new products on a shop by shop basis.Joe Groves was asked to
present the program to the EIAfor consideration at their next
meeting.
Philco-Ford InauguratesTelephone Hot -Line Service
Under a new ordering plan, a Philco service agent canplace his
order for parts from anywhere in the country(even the customer's
home) by dialing a special toll -freetelephone number. The order is
then recorded androuted to the nearest Philco-Ford regional parts
and ser-vice depot in Philadelphia, Chicago, Atlanta, Dallas or
LosAngeles, where it is filled within 24 hours. For each call,the
service agent is charged $1.00 to cover administrativecosts of the
program.
John W. Miller, general manager of the parts and ser-vice at
Philco-Ford, predicted that 98 percent of Philco's5500 service
agents will utilize the new communicationsnetwork, including
several hundred agents who regularlyorder by phone. At present,
about 75 percent of all partsorders are received through the
mails.
"By instituting this network, we can offer the sameswift,
dependable service to the agent in rural Wyomingthat we provide his
counterpart in New York City orPhiladelphia," Mr. Miller said.
Services of P.T.S. ElectronicsNow Covered by RCA Warranty
Mr. S. Tyra, manager of Commercial Services for RCA,has
announced that P.T.S. Electronics, Inc., with its sixlocations in
Bloomington, Ind.; Springfield, Mass.; Long-view, Texas; Denver,
Colo.; Jacksonville, Fla.; and Sacra-mento, Calif., is fully
authorized to accept and repair anyRCA tuner in warranty at no
charge under the RCAWarranty Agreement. Mr. Tyra also stated that
any dealermay send their defective in -warranty tuners (90 days
forB/W -TV sets, one year for color -TV sets) directly toP.T.S.
Electronics, Inc. prepaid and with completed re-turn material tag.
P.T.S. will repair and return the tunerprepaid at no charge to the
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APRIL 1972, ELECTRONIC TECHNICIAN/DEALER 27
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The new line includes 7 antennas for VHF/UHF/FM, 5for VHF/FM and
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28 I ELECTRONIC TECHNICIAN/DEALER, APRIL 1972
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APRIL 1972, ELECTRONIC TECHNICIAN/DEALER 29
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CLEVELAND, OHIO 44139
EUROPE: 14. AVENUE VILLARDIN. 1009 PULLY. SUISSI
The Model 167... another how -sweet -it -is Keithley
Multimeter
READERS' AIDSpace contributed to help serve thepersonal needs of
you, our readers.
Manual NeededI have a Solar Exam-eter Model
CF, manufactured by the Solar Mfg.Co., New York. The serial
number is93713. I would appreciate a copy ofan operating
-instruction manual. Allcost will gladly be paid by me.
ARLO LUSBY 11324 North Shadyglen DriveCovina, Calif. 91722
For SaleI have the following items for sale:
Back issues of SERVICE Magazinesfrom May, 1952 to October,
1958and ELECTRONIC TECHNICIAN/DEAL-ER Magazines from January, 1959
toDecember, 1971. Make an offer. Also,I have a TV -FM sweep
generator forsale.
JAMES C. GRANTGrant Radio & TV927 Blackburn Ave.Ashland,
Ky.
Information NeededSome time ago 1 purchased a B & K
tube tester Model 675, automatic cardtype. I have discovered
that I cannottest any of the newer type tubes. Isthere some way to
modernize thistester? Many of the later type tubesare similar to
the older types with dif-ferent base arrangements. Any helpanyone
can give me will he greatlyappreciated.
RICHARD WOLFWolf's Radio & TV RepairBox 325Wishek, N. D.
58495
For Sale or TradeI have a Nordmende solid-state dis-
tortion meter, ranges 0.03% to 100%,0.1 my to 300v rms. I will
sell it orexchange for a CRT tester.
BOB KREJCIKAudio HiFi Service228 Norman Ave.Brooklyn, N. Y.
11222
Technicians, Earn Your Associate
DEGREEmostly by correspondence
Accrt,lited lov the Aredt ('nun of N.itt.,..11 I lot.Stud./
('out, -ti (; I Arprit,41 I. ,
Dept. TGrantham School of Engineering
1.50.5 N Western. 11()Ilywoml, Cala 90027. . . for more details
circle 138 on Reader Service Card
... for more details circle 120 on Reader Service Card
30 ! ELECTRONIC TECHNICIAN/DEALER, APRIL 1972
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