Kons TG Tapering Data (1)

7/27/2019 Kons TG Tapering Data (1)

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Hammond Tonewheel Generator output levels measured according to the method used on the old Hammond graph called ''APPROXIMATE OUTPUT VOLTAGEREADINGS OF ORGAN GENERATOR FREQUENCIES 1 TO 91.''

This output curve graphchart seems to be from the 1930’s but l believe that it is a very important and useful graph chart . ln order to measure the Tonewheel Generator ( TG )output levels with the method shown on this output curve graph , the AC Volts RMS voltage meter is connected to the GG outputs of the preamplifier. The chart indicates thatthe Hammond Tone Cabinet is connected during the test. I suspect that if a Leslie Kit is connected, the low impedance of the Leslie Kit may affect the output readings sobefore taking my measurements it may be a good idea to remove the Leslie Kit The chart states that ''the Tone Control on the preamplifier should be as set at the factory '.

Although the chart gives no indication, l have been told by a leading and very knowledgeable Hammond technician / expert that the normal factory set position of the ToneControl during the factory Quality Assurance tests was in the half way position The chart states that the expression pedal should be at full volume position and that the chorus/ vibrato controls should be in the ''off'' position. The instructions do not say anything about the position of the gain trimmer capacitor in the expression swell box , but mostorgans that l have seen including my 1963 C3 had the gain trimmer capacitor set to one and a half turns fro the zero position , so when l recalibrated and measured the TG ofmy 1963 C3 using this graph chart as a guide , l set the gain trimmer capacitor back to the one and a half position and the AO28 Tone Control to the half way position so that lcould get back to as close to the original factory settings as possible for the best accuracy.

Either the 16'ft , the 5 1/3' ft or the 1'ft drawbar is drawbar is selected and the appropriate keyboard key is pressed and the AC RMS voltage coming out of the GG outputs isnoted down. The ''Chart 1 '' is for the earlier Model B organs with serial numbers between 4000 and 5075, and also for the Concert Model E organs with serial numbers

below 8000. The Chart 1 for the early organs uses the 16' ft drawbar and the keyboard keys 1 to 48 [ C 1 to B 4 ] for the TG notes 1 to 48 and the 1' ft drawbar and thekeyboard keys 1 to 43 [ C 1 to F# 4 ] for the TG notes 49 to 91. lt appears that the Chart 1 is for the very early organs such as the Model BC that had the ''bass all the waydown '' to the TG note 1 on the bottom octave of the keyboard of the 16 'ft drawbar. The Chart 2 is for the later Model B organs with the serial numbers above 5075 and forthe later Concert Model E organs with the serial numbers above 8000.

The Chart 2 has noticeably weaker bass output levels below the TG note 25 , as well as an overall weaker output level compared to the Chart 1 . The Chart 2 for the laterModel B and E organs uses the 16' ft drawbar and the keyboard keys 1 to 36 [ C 1 to B 3 ] for the TG notes 13 to 36 . The chart 2 then uses the 5 1/3 ' ft drawbar and thekeyboard keys 18 to 29 [ F 2 to E 2 ] for the TG notes 37 to 48. after this, the Chart 2 uses the 1' ft drawbar and the keyboard keys 1 to 43 [ C1 to F# 4 ] for the TG notes 49to 91. The reason for this particular choice of drawbars and keys is because the manual tapering resistance wire values for all of these keys follow a consistent resistancevalue pattern so therefore you can get a realistic comparison between the output levels of each TG note without the noticeable output level variations that affect the TG noteson the other drawbar and keyboard positions because of the various different resistance values of the manual tapering resistance wires. As can be seen on the ''llya'

Keycircuit Tapering Resistances Of One Manual Of 1946 CV '' chart in this TG & Tapering data spreadsheet, on the 16 'ft drawbar the resistance wire values for the keyboardnotes 1 to 7 [ C1 to F# 1 ] are 100 ohms [ 120 ohms for the note 8 and 140 ohms for the note 9 ] , for the keyboard notes 10 to 16 [ A1 to F 2 ] the resistance wire values are50 ohms. .For the 16' ft drawbar keyboard notes 17 to 36 [ F# 2 to B 3 ] as well as the 5 1 /3 'ft drawbar keyboard notes 18 to 29 [ F2 to E 2 ] and the 1' ft drawbar keyboardnotes 1 to 43 [ C1 to F# 4 ] the resistance wire values are 24 ohms.

FEBRUARY 2005 TG RECALIBATION OF MY 1963 C3Both the Chart 1 and the Chart 2 output curves are for the 1930’s / early 1940’s era organs with the earlier preamplifier designs , so this means that the output voltagecurves were probably not intended to be used with the later organs with the AO28 preamplifier such as the B3 / C3 / RT3 / A100 / D152 etc, because the earlier preamplifierdesigns would have had a different frequency response and gain levels than the AO28 preamplifier. However because the output curve graph chart is a Hammond factorychart and also because the output curves are the tonal balance of the final output signals coming from the GG outputs of the preamplifier , l decided that it does not reallymatter that the output curves were not necessarily intended for the organs with the AO28 preamplifiers, and l was curious to hear how my 1963 C3 would sound like if the TGwas recalibrated so that the output levels coming from the GG outputs of the AO28 were similar to that shown on the old Hammond output curve graph , so l decided to

recalibrate the TG of my 1963 C3 with this method. Because l want to be able to get a nice warm fat sound out of my 1963 C3 , l decided to recalibrate the TG to give thestronger bass and the stronger overall output levels of the Chart 1 output curve intended for the earlier Model B and E organs. I used the drawbar and pressed keyscombinations shown on the Chart 2 because of the manual tapering resistance wiring scheme in my 1963 C3 , but I recalibrated the TG to give out the stronger outputvoltages shown on the Chart 1.

In 2004 l modified my 1963 C3 so that l can choose between the normal stock bass foldback or the ‘’bass all the way down’’ setting for the bottom octave of the keyboardswith the 16 ft drawbar position , and l also added switching that can convert the complex waveforms of the bass TG notes 1 to 12 into approximate sine waveforms bygrounding out each of the TG notes 1 to 12 with 470 mf capacitors . For the TG recalibration l set the selector switch to produce the ‘’bass all the way down’’ setting and lswitched the 470 mf grounding capacitors in circuit so that l got the purified sine wave-like bass TG notes 1 to 12 on the bottom octave of the keyboards with the 16 ft drawbarposition so that my C3 was now like the very early Hammond models such as the B and the BC and l could easily recalibrate the bass TG notes 1 to 12 through the 16 ftdrawbar position of the bottom octave of the keyboards .

Possible output levels of the old

Hammond graph Chart 1 for the e

Model B and E organs if the outpu

voltages from this chart are used recalibrate the TG of an organ w

AO28 preamplifier such as the B3

RT3 / A100 / D152 etc , and with

AO28 Tone Control turned up to f

brightness position.

Drawbar Keyboard Note TG Note Volts RMS Drawbar Keyboard Note TG Note Volts RMS Volts RMS

16 1 1 3.3 16 1 1 0.8 3.42

16 2 2 3.32 16 2 2 0.81 3.44

16 3 3 3.34 16 3 3 0.84 3.45

16 4 4 3.35 16 4 4 0.85 3.4616 5 5 3.37 16 5 5 0.87 3.48

16 6 6 3.39 16 6 6 0.89 3.49

16 7 7 3.4 16 7 7 0.9 3.51

16 8 8 3.41 16 8 8 0.93 3.51

16 9 9 3.42 16 9 9 0.97 3.51

16 10 10 3.43 16 10 10 1 3.51

16 11 11 3.43 16 11 11 1.02 3.49

16 12 12 3.43 16 12 12 1.06 3.51

16 13 13 3.43 16 13 13 1.1 3.51

16 14 14 3.43 16 14 14 1.15 3.51

16 15 15 3.42 16 15 15 1.2 3.5116 16 16 3.41 16 16 16 1.26 3.5

16 17 17 3.4 16 17 17 1.34 3.5

16 18 18 3.39 16 18 18 1.44 3.5

16 19 19 3.38 16 18 19 1.51 3.5

16 20 20 3.35 16 20 20 1.61 3.48

16 21 21 3.32 16 21 21 1.72 3.46

16 22 22 3.3 16 22 22 1.96 3.44

16 23 23 3.28 16 23 23 2.03 3.44

16 24 24 3.23 16 24 24 2.3 3.41

16 25 25 3 2 16 25 25 2 46 3 39

OLD HAMMOND GRAPH CHART TITLED

"APPROXIMATE OUTPUT VOLTAGE READINGS

OF ORGAN GENERATOR FREQUENCIES 1 TO

91''. CHART 2Model B organs Serial numbers above 5075.

Model E organs Serial numbers above 8000 Also

B3 / C3 /RT3 / A100 etc ? Bass foldback on

keyboard bottom octave of keyboard 16' ft

drawbar.

OLD HAMMOND GRAPH CHART TITLED

"APPROXIMATE OUTPUT VOLTAGE READINGS

OF ORGAN GENERATOR FREQUENCIES 1 TO 91''CHART 1 Model B organs Serial number 4000 to

5075. Model E organs Serial numbers below 8000

'' Bass all the way down'' on bottom octave of

keyboard 16'ft drawbar

Hammond Tonewheel Generator output levels taken from the GG outputs of the preamplifier whilst the appropriate drawbars are selecte

GENERATOR FREQUENCIES 1 TO 91'' The chart states that the Tone Control '' should be as set at factory'' [ possibly at th

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note#

Old Hammond output curve graph titled ''APPROXIMATE OUTPUT VOLTAGE READINGS OF ORGAN GENERATOR FREQUENCIES 1TO 91'' Chart 1 Early Model B organs Serial number 4000 to 5075 and early Model E organs with Serial numbers below 8000.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Old Hammond graph called ''APPROXIMATE OUTPUT VOLTAGE READINGS OF ORGAN GENERATOR FREQUENCIES 1 TO 91''Chart 2 Model B organs with Serial numbers above 5075 and Model E organs with Serial numbers above 8000. Possibly B3 / C3 / RT3 / A100 etc

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

TG Note #

Possible output levels of the old Hammond graph Chart 1 for the earlier Model B and E organs if the output voltages from this chartare used to recalibrate the TG of an organ with the AO28 preamplifier , and with the Tone control at full bright position.

Ray's 1959 C3 s/n 800775. GG + drawbars and keys pressed. Tone Control set at halfway position

Ray's 1959 C3. S/n 80775. GG + drawbars and keys pressed. Tone Control set to full brightness position.

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TG Note #

Kon's 1963 C3 ( 1 ) GG+ Drawbars & keys pressed. Bass foldback removed. Notes 1-12 filtered for sinewave bass. TG notes 13 - 16 set lowerbecause of manual resistance wire inconsistencies. Gain trimmer capacitor at 1 1/2 turns. Tone Control at halfway .

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Kon's 1963 C3 (2) GG+Drawbars & keys pressed. Bass foldback removed. Notes 1-12 filtered for sinewave bass. TG notes 13-16 set lower due tomanual resistance wire inconsistencies.Gain trimmer cap set at 1 1/2 turns. Tone Control at full brightness.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note # ( 1 - 12 are actually the TG Notes 13 - 24 due to bass foldback ).

Church 1960 RT3 with aged wax capacitors. ( 1 ) GG + Drawbars & pressed keys as in old Hammond graph .Tone Control at halfway position.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note # ( 1 - 12 are actualy the TG notes 13 - 24 due to bass foldback.

Church 1960 RT3 with aged wax capacitors. ( 2 ) GG + Drawbars & pressed keys as in old Hammond graph. ToneControl at full brightness position.

Bernard's 1973 C3.( 1) GG + drawbars & pressed keys. Bass Foldback at keyboard notes 1 - 12. Gain trimmer capacitor at zero turns. Tone Controat halfway position. Volts RMS .

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Bernard's 1973 C3 (2) . GG+Drawbars & pressed keys. Bass Foldback on keyboard notes 1 - 12. Gain trimmer capacitor at 1 1/2 turns. ToneControl at the halfway position. V RMS.

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Bernard's 1973 C3 (3) GG + drawbars & pressed keys. Bass Foldback on keyboard notes 1 - 12 . Gain trimmer capacitor at 1 1/2 turns. Tone Controat halfway . Volts peak to Peak.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note # ( For Stock later B and E organs and the 1960 RT3 , tne notes 1 - 12 are actually the TG notes 13 - 24 due to the bass foldback ).

COMPARISON CHART.Tone Generator outputs taken from the GG outputs whilst the appropriate drawbars and theappropriate keys are selected, as shown in the old Hammond graph titled ''APPROXIMATE OUTPUT VOLTAGEREADINGS OF ORGAN GENERATOR FREQUENCIES 1 to 91

Early Model B & E organs Later Model B and E organs Kon's 1963 C3 Tone Control at half way

Hammond Tonewheel Generator output levels measured with a voltage meter connected to the GG outputs of the preamplifierwhilst each TG note is connected to a preset panel busbar , as instructed on the Hammond B3 / C3 technical service manual.

The Model G service manual states that the Tone Control should be set to full brightness for this test. l assume that this also applies tothe B3 / C3 RT3 / A100 etc. To measure the output levels of my recapped and recalibrated 1963 C3 l turned the AO28 Tone Control tofull brightness and the gain trimmer capacitor screw to the factory set position of one and a half turns anticlockwise from zero. On thechurch 1960 RT3, l turned the AO28 Tone Control to full brightness but l turned the gain trimmer capacitor screw inside the expressionswell box until the TG note 25 ( 10.5 mVpp when measured directly from the TG of the RT3 ) gave a reading of 11.5 volts RMS throughthe GG outputs when it was connected to the busbar # 5 ( sixth from the bottom ). The B3 service manual instructs to use the busbar #4 ( fifth from the bottom ) but this may possibly be an error because the displayed service manual voltages are not achievable with thefourth busbar even when the gain trimmer capacitor is set to its maximum gain position of approximately 11 turns anticlockwise from thezero position .On the stock 1960 RT3 with the original factory set TG calibration levels, setting the gain trimmer capacitor screw toapproximately 3 turns anticlockwise from the zero position gave a reading of 11.5 volts RMS when the TG note 25 was connected to thefifth busbar ( sixth from the bottom ) so l decided to measure the RT3 with the fifth busbar instead of the fourth. Both the C3 and the RT3have the original stock AO28 preamplifier. l have wired two pole / three position switches in parallel with all of the new TG capacitors forthe TG notes 49 - 91 of my 1963 C3 . ln switch position 1, the new TG capacitors are correctly in circuit and this approximates the waymy C3 will have sounded when it was new and the wax capacitors were working in their correct specification. ln switch position 2, thereare smaller value capacitors added in parallel to the correct mfd value TG capacitors and these added capacitors increase the mfd valueby approximately 20 % so that this can simulate the way my C3 may have sounded when the old wax capacitors had aged moderatelyand the mfd value had drifted up by 20 % . ln switch position 3, there are smaller value capacitors added in parallel to the correct mfd

value TG capacitors and these added capacitors increase the mfd value by approximately 50 % so that this can simulate the way my C3sounded when the old wax capacitors had aged after 40 years and their mfd value had increased by approximately 50 % Notice theoutput levels of the TG notes 49 - 91 of my 1963 C3 that l did by connecting the voltmeter to the GG outputs and each TG note wasconnected to the fifth ( sixth from the bottom ) preset panel busbar. Notice how the output level readings of the TG notes 49 - 91 actuallyincreased when l set the TG capacitor switches to positions 2 and 3 for the aged TG capacitors simulations.You would expect that whenthe capacitors are switched to recreate the effect of ageing, the output levels of the 49 - 91 signals would decrease. In the GG +drawbars and pressed keys measurement method, you do indeed see a lowered output reading for the TG notes 49 - 91 when thecapacitors are switched to recreate the effect of ageing.However, with the GG + preset panel busbar measurement method, the TG note is connected directly to the preset panel busbar .Theextremely low impedance of the busbars ( less than one ohm ) causes the different TG notes to react differently when they are connectedto the busbar. This is why there is a very large difference in the output readings of the directly coupled TG notes 1 to 43 and the

transformer coupled TG notes 44 to 91.On the later era ( 1965 - 75 ) organs the TG notes 37 -48 had the capacitor / resistor hum filtersand on these organs there is an abrupt difference in the output levels between the TG notes 36 and 37.This can be seen in Bernard's1973 C3. Another interesting observation is the fact that the output readings of some of the TG notes 49 - 91 on my 1963 C3 actuallyincrease when the capacitor switch is set to recreate the aged capacitors effect. This rais es serious questions about the reliability andaccuracy of the measurement method using the TG notes directly connected to the preset panel busbar .l believe that the GG + drawbarsand pressed keys measurement method is a more realistic and accurate method to measure the TG output levels through the GGoutputs , and l believe that the best way to measure the TG outputs is when the TG itself is measured directly in millivolts peak to peak .With the direct TG measurement the condition of the preamplifier and the valves is ir relevant

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Hammond Model G ( same as DV ) Service Manual. 82 note TG. TG notes connected to the busbar # 4 ( fifth from the bottom ) . Chartinstructs to use a 4 K ohms per volt scale voltage meter.

H d B3 / C3 S i l ''TABLE V GENERATOR OUTPUT VOLTAGES'' h t I t ti t t TG t t th

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TG Note #

Hammond B3 / C3 Service manual ''TABLE V GENERATOR OUTPUT VOLTAGES'' chart. Instructions say to connect TG notes to thebusbar # 4 ( fifth from bottom ). However with the displayed voltages the busbar # 5 (sixth from the bottom ) seems more correct .

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

Ray's 1959 C3 S/n 80775 . TG notes 49-54 recapped with .22 mf capacitors. TG notes 55-91 recapped with .1 mf capacitors. TG notes connected tothe fifth ( sixth from the bottom ) busbar . Tone Control set to full brightness position.

Kon's 1963 C3 Feb 2005 TG recalibration TG capacitors at the correct mfd values for the ''as new'' sound Bass foldback removed

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

TG Note #

Kon s 1963 C3 . Feb 2005 TG recalibration. TG capacitors at the correct mfd values for the as new sound. Bass foldback removed.TG notes 1 - 12 filtered for sine wave like bass. TG notes connected to the busbar # 4 ( fifth from the bottom )

Kon's 1963 C3 Feb 2005 recalibration Bass foldback removed TG notes 1 - 12 are the stock complex waveforms TG capacitors at

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TG Note #

Kon s 1963 C3. Feb 2005 recalibration. Bass foldback removed. TG notes 1 - 12 are the stock complex waveforms. TG capacitors atthe correct mfd value for the ''as new'' sound. TG notes connected to busbar # 5 ( sixth from the bottom ).

Kon's 1963 C3 Feb 2005 TG recalibration. Bass foldback removed. TG notes 1 - 12 filtered for sinewave like bass. TG capacitors at

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Kon s 1963 C3 Feb 2005 TG recalibration. Bass foldback removed. TG notes 1 12 filtered for sinewave like bass. TG capacitors atthe correct mfd value for the ''as new'' sound. TG notes connected to busbar # 5 ( sixth from the bottom ) .

Kon's 1963 C3 Feb 2005 recalibration. Bass foldback removed. TG capacitor values switched to be at 20 % above the correct mfd

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

pvalues for a moderately aged sound. TG notes connected to busbar # 5 ( sixth from the bottom ) .

Kon's 1963 C3 Feb 2005 recalibration. Bass foldback removed. TG capacitor values switched to be at 50% above the correct mfd

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

value for a 40 years aged sound. TG notes connected to busbar # 5 ( sixth from the bottom ).

Church 1960 RT3 with stock aged wax capacitors. TG notes connected to busbar # 5 ( sixth from the bottom ).

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Bernard's 1973 C3 with red styrene capacitors.TG notes 37 - 48 have the capacitor / resistor hum filters. TG notesconnected to busbar # 4 ( fifth from the bottom )

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TG Note #

connected to busbar # 4 ( fifth from the bottom ) .

Bernard's 1973 C3 with red styrene capacitors. TG notes 37 - 48 have the capacitor / resistorh filt TG t t d t b b # 5 ( i th f th b tt )

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TG Note #

hum filters. TG notes connected to busbar # 5 ( sixth from the bottom ) .

Geoffrey Dairiki's 1961 C3 with stock aged wax capacitors . TG notes connected to busbar #4 ( fifth from the bottom )

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85TG Note #

4 ( fifth from the bottom ) .

TG NoteKon's 1963 C3

' CDE ' WaxCaps

Kon's 1963 C3

New MKT Caps

Church 1960 RT3

'Mica Mold ' WaxCaps

Church 1960 RT3

New MKT Caps

Mihevic 1956 B3

Wax Caps

Mihevic 1956 B3

Goff Cap Kit

49 318 nf 255 nf 392 nf 239 nf 580 nf 224 nf

50 307 nf 255 nf 368 nf 248 nf 412 nf 225 nf

51 299 nf 254 nf 375 nf 248 nf 400 nf 225 nf 52 281 nf 253 nf 398 nf 248 nf 485 nf 226 nf

53 278 nf 253 nf 364 nf 248 nf 590 nf 227 nf

54 274 nf 253 nf 383 nf 248 nf 360 nf 228 nf

55 159.6 nf 107.1 nf 137.9 nf 104.5 nf 203 nf 99 nf

56 153.2 nf 107 nf 158.6 nf 99.8 nf 330 nf 99 nf

57 146.7 nf 106.9 nf 168.2 nf 110 nf 183 nf 99 nf

58 146.5 nf 111.6 nf 156.5 nf 99.8 nf 340 nf 99 nf

59 144.4 nf 106.8 nf 133.1 nf 95.8 nf 320 nf 100 nf

60 167.7 nf 111.15 nf 163.9 nf 110 nf 350 nf 100 nf

61 146.1 nf 106.8 nf 171.1 nf 99.8 nf 280 nf 100 nf

62 125.6 nf 106.8 nf 159.3 nf 104.5 nf 330 nf 100 nf

63 150.5 nf 106.8 nf 165.5 nf 99.8 nf 188 nf 100 nf

64 143.7 nf 111.4 nf 146 nf 105.4 nf 410 nf 100 nf

65 175.4 nf 114.9 nf 138.4 nf 105.4 nf 365 nf 100 nf

66 171 nf 111.4 nf 171 nf 102 nf 260 nf 101 nf

67 177.7 nf 111.3 nf 173.2 nf 104.5 nf 350 nf 101 nf

68 176.2 nf 106.6 nf 166.8 nf 104.5 nf 290 nf 101 nf

69 126.2 nf 106.5 nf 136.4 nf 99.8 nf 238 nf 101 nf

70 159.7 nf 114.7 nf 150.3 nf 95.6 nf 320 nf 101 nf

71 142.2 nf 111.2 nf 164.2 nf 95.6 nf 400 nf 101 nf

72 158.5 nf 106.4 nf 170.8 nf 99.8 nf 320 nf 102 nf73 163.2 nf 106.4 nf 158.7 nf 99.8 nf 340 nf 102 nf

74 151.3 nf 106.4 nf 166.2 nf 99.8 nf 215 nf 102 nf

75 150 nf 111.1 nf 166 nf 104.5 nf 360 nf 102 nf

76 150.5 nf 109.7 nf 164.2 nf 104.5 nf 270 nf 102 nf

77 161.2 nf 114.5 nf 158.1 nf 97.8 nf 223 nf 102 nf

78 165.9 nf 106.3 nf 163.2 nf 103.8 nf 330 nf 102 nf

79 139.9 nf 106.3 nf 134.1 nf 99.8 nf 215 nf 102 nf

80 159.1 nf 110.8 nf 163.3 nf 105.4 nf 315 nf 102 nf

81 166.1 nf 110.8 nf 171.6 nf 104.5 nf 300 nf 103 nf

82 156.5 nf 114.1 nf 168.9 nf 99.8 nf 211 nf 103 nf

83 172.3 nf 114.1 nf 163.3 nf 102 nf 410 nf 103 nf 84 105.5 nf 114.2 nf 156.7 nf 110 nf 330 nf 103 nf

85 168.6 nf 109.8 nf 164.4 nf 104.5 nf 165 nf 103 nf

86 162.9 nf 109.8 nf 169.4 nf 105.4 nf 322 nf 103 nf

87 159.6 nf 104.9 nf 167.1 nf 99.8 nf 410 nf 103 nf

88 148.8 nf 112.8 nf 163.7 nf 99.8 nf 184 nf 103 nf

89 165.5 nf 112.7 nf 167.5 nf 99.8 nf 540 nf 103 nf

90 167.8 nf 112.6 nf 160.9 nf 99.8 nf 380 nf 104 nf

91 155.8 nf 108 nf 168.2 nf 99.8 nf 250 nf 105 nf

Kon's 1963 C3 & Church 1960 RT3 & J Mihevic's 1956 B3 Old Wax Capacitors & New Capacitors

note octave 16' resistance 5 1/3' resistance 8' resistance 4' resistance 2 2/3' resistance 2' resistance 1 3/5' resistance 1 2C 1 13 100 20 34 13 50 25 34 32 10 37 10 41 15 4

C# 1 14 100 21 34 14 50 26 34 33 10 38 10 42 15 4

D 1 15 100 22 34 15 50 27 34 34 10 39 10 43 15 4

D# 1 16 100 23 34 16 50 28 34 35 10 40 10 44 15 4

E 1 17 100 24 34 17 50 29 34 36 10 41 10 45 15 4

F 1 18 100 25 34 18 50 30 34 37 10 42 10 46 15 4

F# 1 19 100 26 34 19 50 31 34 38 10 43 10 47 15 5

G 1 20 120 27 34 20 50 32 34 39 10 44 10 48 15 5

G# 1 21 140 28 34 21 50 33 34 40 10 45 10 49 15 5

A 1 10 50 29 34 22 50 34 34 41 10 46 10 50 15 5

A# 1 11 50 30 34 23 50 35 34 42 10 47 10 51 15 5B 1 12 50 31 34 24 50 36 34 43 10 48 15 52 15 5

C 2 13 50 32 34 25 50 37 34 44 15 49 15 53 15 5

C# 2 14 50 33 34 26 50 38 24 45 15 50 15 54 15 5

D 2 15 50 34 24 27 50 39 24 46 15 51 15 55 15 5

D# 2 16 50 35 24 28 34 40 24 47 15 52 15 56 15 5

E 2 17 34 36 24 29 34 41 24 48 15 53 15 57 15 6

F 2 18 34 37 24 30 34 42 24 49 15 54 15 58 15 6

F# 2 19 34 38 24 31 34 43 24 50 15 55 15 59 24 6

G 2 20 34 39 24 32 34 44 24 51 15 56 15 60 24 6

G# 2 21 34 40 24 33 34 45 24 52 24 57 24 61 24 6

A 2 22 34 41 24 34 34 46 24 53 24 58 24 62 24 6A# 2 23 34 42 24 35 34 47 24 54 24 59 24 63 24 6

B 2 24 34 43 24 36 24 48 24 55 24 60 24 64 24 6

C 3 25 24 44 24 37 24 49 24 56 24 61 24 65 24 6

C# 3 26 24 45 24 38 24 50 24 57 24 62 24 66 24 6

D 3 27 24 46 24 39 24 51 24 58 24 63 24 67 24 7

D# 3 28 24 47 24 40 24 52 24 59 24 64 24 68 24 7

E 3 29 24 48 24 41 24 53 24 60 24 65 24 69 24 7

F 3 30 24 49 24 42 24 54 24 61 24 66 24 70 24 7

F# 3 31 24 50 24 43 24 55 24 62 24 67 24 71 24 7

G 3 32 24 51 24 44 24 56 24 63 24 68 24 72 24 7

G# 3 33 24 52 24 45 24 57 24 64 24 69 24 73 24 7A 3 34 24 53 24 46 24 58 24 65 24 70 24 74 24 7

A# 3 35 24 54 24 47 24 59 24 66 24 71 24 75 24 7

B 3 36 24 55 24 48 24 60 24 67 24 72 24 76 24 7

C 4 37 15 56 24 49 24 61 24 68 24 73 24 77 24 8

C# 4 38 15 57 24 50 24 62 24 69 24 74 24 78 24 8

D 4 39 15 58 15 51 15 63 24 70 24 75 24 79 24 8

D# 4 40 15 59 15 52 15 64 34 71 24 76 24 80 24 8

E 4 41 15 60 15 53 15 65 34 72 34 77 24 81 24 8

F 4 42 15 61 15 54 15 66 34 73 34 78 34 82 24 8

F# 4 43 15 62 15 55 15 67 34 74 34 79 34 83 34 8

llya's Keycircuit Tapering Resistances Of One Manual

llya's 1964 A100 Resistance wire connections to Tonewheels (divided by drawbar)

llya s 1964 A100 Resistance wire connections to Tonewheels (divided by drawbar)

10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90

tonewheel

R e s i s t a n c e ( o h m s )

16' 5 1/3' 8' 4' 2 2/3' 2' 1 3/5' 1 2/3' 1'

llya's 1964 A100 Resistance wires from notes (divided by drawbar)

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61

TG Note #

R e s i s t a n c e ( o h m s )

Possible Hammond factory TG output curve based on the similar TG curves of many TG's in the spreeadsheet. mV pp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG note #

Possible Hammond factory TG output curve based on the similar TG curves of many TG's in the spreeadsheet. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Direct TG output levels of an organ with the AO28 preamp, recalibrated from the GG outputs to have the bassier outputs of the earlierModel B & E organs shown on the old Hammond output curve graph Chart 1. TG notes 1-12 filtered for sinewave bass. mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG note #

Direct TG output levels of an organ with the AO28 preamp, recalibrated from the GG outputs to have the bassier outputs of the earlierModel B & E organs shown on the old Hammond output curve graph Chart 1. TG notes 1-12 filtered for sinewave bass mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Direct TG output levels of an organ with the AO28 preamp recalibrated from the GG outputs to have the bassier outputs of the earlierModel B & E organs shown on the old Hammond output curve graph Chart 1 Complex waveform TG notes 1 - 12 . mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Direct TG output levels of an organ with the AO28 preamp recalibrated from the GG outputs to have the bassier outputs of the earlierModel B & E organs shown on the old Hammond output curve graph Chart 1. Complex waveform TG notes 1-12. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

llya's Stock Wax Capped 1964 A100 "Quintessential Hammond Sound''

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

Carsten's friend's A100 . Values ''Normalised''. www.tonewheel.de mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87TG Note #

Carsten's friend's A100 . Values ''normalised ''. www.tonewheel.de mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87TG Note #

Staffan's Late 60's /Early 70's A100

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91

Dominik's A102 Recapped with Goff kit

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Dominik's A102 Recapped with Goff kit & Recalibrated

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Charles's 1963 A103 Wax Capacitors Kon's calculated mV PP levels

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Charles's 1963 A103 Wax capacitors mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Charles's 1963 A 103 Recapped & recalibrated mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Charles's 1963 A103 Recapped & recalibrated mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG note #

Simon's mid 60's A105 s/n 26172 Red styrene capacitors mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

Simon's mid 60's A105 s/n 26172 Red styrene capacitors

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

Charles's 1937 BC S/n 4667 Recapped with Goff kit caps Kon's calculated mV pp levels

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Charles's 1937 BC S/n 4667 Recapped with Goff kit caps mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG note #

Mihevic 1956 B3 s/n 59520 Wax Capacitors. TG readings taken in 1972 . mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

Mihevic 1956 B3 s/n 59520 Wax caps. TG readings from 1972 . mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

Mihevic 1956 B3 s/n 59520 Wax capacitors. More recent wax cap TG output levels. mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Mihevic 1956 B3 s/n 59520 Wax capacitors. More recent wax cap TG output levels. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG note #

Mihevic 1956 B3 s/n 59520 Recapped with Goff cap kit. mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #Original TG calibration Readjusted TG notes.

Mihevic 1956 B3 s/n 59520 Recapped with Goff cap kit. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #Original TG calibration Readjusted TG notes

Steffan's Recapped + Steffan's Recapped & Readjusted 1950's B3

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 8

TG NoteSteffan's Recapped 1950's B3 Steffan's Recapped & Recalibrated 1950's B3

Jurgen's 1959 B3 with wax capacitors mV PP

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note

Jurgen's 1959 B3 with wax capacitors. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Simon's 1965 B3 S/n 95156. Wax capacitors. B3 used by Jon Lord and Ian Mclagen for their Melbourne concerts. mVpp

Simon's 1965 B3 S/n 95156. Wax capacitors. B3 used by Jon Lord and Ian Mclagen for their Melbourne concerts. mV RMS

Micha's 1969 B3 with Mylar capacitors mV PP

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note

Micha's 1969 B3 with Mylar capacitors mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Ilya's - 82 Note TG 1946 CV Recapped with Goff cap kit mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Dave's 1947 CV With Goff cap kit

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Notes

Dave's 1948 CV With wax caps

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Notes

Christoph's C2 G Wax capacitors

Dave's 1959 C3 With wax caps

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Notes

Mihevic 1959 C3 s/n 79421.Wax caps.TG readings from 1972 with Simpson analog RMS meter. Converted to mVpp by Kon

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Mihevic 1959 C3 s/n 79421 Wax capacitors. TG readings taken in 1972 with Simpson analog RMS meter.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Rays 1959 C3. S/n 80775 Recapped with polyester capacitors.Very nice ''creamy sound. Great overdrive sound . mVpp

Kon's 1963 C3. Recapped. Feb 2005. TG recalibrated from the GG outputs, using the output levels of the old Hammond output curvegraph Chart 1 for the earlier Model B & E organs. Bass foldback removed. Unfiltered complex waveform TG notes 1-12. mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG note #

Kon's 1963 C3. Feb 2005. TG recalibated from the GG outputs, using the output voltages of the old Hammond output curve graphChart 1 for the earlier Model B & E organs. Bass Foldback Removed. TG Notes 1 - 12 filtered for Sine wave bass mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

Kon's 1963 C3 Feb 2004 TG recalibration. Bass foldback removed. TG notes 1-12 filtered for sinewave bass. Notes 49-91 withadditional capacitors added in parallel for a 20 % increase in mfd value for a moderately aged sound. mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Kon's 1963 C3. Feb 2005 TG recalibration. Bass foldback removed. TG notes 1-12 filtered for sine wave bass. TG notes 49-91 withadditional capacitors added in parallel for a 50 % increase in mfd value for a 40 years aged sound.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note#

Kon's 1963 C3 . TG output comparison betweenTG with correct capacitor mfd values for ''as new sound'', capacitors at 2the correct mfd value for moderately aged sound and capacitors at 50 % above the correct mfd value for a 40 years aged

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79

TG Note #

Kon's 1963 C3 Recapped. TG recalibrated in Feb 2005 to give similar output voltage readings from the GG outputs as those shown on the old Hammond output curve graph chart. Bass foldback rem

Bernie's Musicland 1965 C3 S/n 93198 With wax capacitors Warm mellow '' flutey '' sound

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Bernie's Musicland 1966 C3 S/n 96641 With red styrene caps. Nice ''Airy '' leakeage

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

John's Red Styrene Capped Readjusted 1968 C3

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note

Bernard's 1973 C3 with red styrene capacitors '' Bright sound '' mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

T G Notes

Bernard's 1973 C3 With red styrene capacitors '' Bright sound ''. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Daniel's 1940 ? Model D 82 note TG . Wax capacitors . Mellow sound with breath and growl . Measured withIwatsu DS88248 Bringo II Diigital oscilloscope mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Daniel's 1940 ? Model D 82 note TG .Wax capacitors . Mellow sound with breath and growl .Measured with Iwatsu DS88248 Bringo II Diigital oscilloscope mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Church 1960 RT3 Measured with Analog MVPP Meter Notes 1 - 12 Measured with Digital Oscilloscope

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #Church 1960 RT3 Wax CapsChurch 1960 RT3 Temporary New Cap Test

Kon's 1963 C3 & Church 1960 RT3 Comparison

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #Kon's 1963 C3 Recapped. TG recalibrated in Feb 2005 to give similar output voltage readings from the GG outputs as thoseshown on the old Hammond output curve graph chart. Bass foldback removed. TG notes 1 - 12 filtered with 470 uf grounding capacit

Church 1960 RT3 Wax Caps

Geoff's 1961 RT3

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

John's 1959 M3 Recapped with Mylar caps

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note

Carsten's T100 . Shunted with 27 0ms resistor. Recalibrated to emulate the sound of the console organs with manualtapering.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87

TG Note #

Carsten's T 100. Shunted with 27 ohms resistor. Recalibrated to emulate the sound of the console organs with manualtapering. mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Matthias's T-222 Red styrene capacitors mVpp

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85

TG Note #

Matthias T-222 Red styrene capacitors mV RMS

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 8

TG Note #

Kons TG Tapering Data (1)

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