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40m Superhet Receiver R7 Schematic OSC Vcc OSC MONI BUF GND MIX RF BYPASS RF 1 2 3 4 5 6 7 8 9 TA7358AP IC-2 OSC OSC MONI GND MIX RF BYPASS RF BUF Vcc 1 2 3 4 5 6 7 8 9 TA7358AP IC-1 IN GND OUT 78L05 REG-1 Crystal Filter RF Amp. 2SK241 Q1 BPF FCZ7S07 T1 0.01 C8 0.01 C9 0.01 C19 0.01 C20 100pF C26 0.01 C27 22p C31 150pF C32 2p C34 22pF C35 22p C37 150pF C36 22pF C33 68pF C28 0.01 C25 330 R6 15pF C11 15pF C12 15pF C13 15pF C14 33pF C15 68pF C16 68pF C17 33pF C18 45pF TC4 45pF TC5 SW-2 CP4 Narrow FCZ7S07 T2 0.01 C30 68pF C29 ANT CP3 45p TC3 Local Oscillator 1000pF C21 1000pF C22 39pF C23 0.01 C24 220k R4 4.7k R5 1SV101 D2 10k VR2 10k VR3 CP2 100pC6 100pF C7 BFO CP1 0.1 C10 4.7k R3 10k VR1 SW-1 45p TC1 45p TC2 SSB CW + 1 2 3 4 8 7 6 5 Gain Bypass - Gain Vs GND LM386 AF Amp. IC-3 10μF C3 0.01 C4 100μF C1 100μF C2 100 R1 10 R2 STEREO JACK J1 6.000MHz X1 6.000MHz X2 6.000MHz X3 6.000MHz X4 Fuji QRP All rights reserved 0.01 C5 IN GND OUT 78L05 REG-2 +12V 1N4007 D1 +R from T7 100μH RFC1 220μH RFC2 4.7μH RFC3 2.2μH RFC4 2.2μH RFC5 2011 Dayton Hamvention Ver.2 15/June/2011

R7 Schematic

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Page 1: R7 Schematic

40m Superhet ReceiverR7

Schematic

OSC

Vcc

OSC MONI

BUF

GND

MIXRF

BYPASSRF

1 2 3 4 5 6 7 8 9

TA7358AP

IC-2

OSC

OSC MONI

GND

MIXRF

BYPASSRF

BUF

Vcc1 2 3 4 5 6 7 8 9

TA7358AP

IC-1

INGND

OUT

78L05

REG-1

Crystal Filter

RF Amp.

2SK241

Q1

BPF

FCZ7S07

T1

0.01C8

0.01C9

0.01

C19

0.01C20

100pF

C26

0.01C27

22p

C31

150pF

C32

2p

C34

22pF

C35

22p

C37

150pF

C36

22pF

C33 68pF

C28

0.01C25

330

R6

15pF

C11

15pF

C1215pF

C13

15pF

C14

33pFC15

68pF

C16

68pF

C17

33pF

C18

45pF

TC4

45pF

TC5

SW-2

CP4

Narrow

FCZ7S07

T2

0.01

C30

68pF

C29

ANT

CP3

45p

TC3

Local Oscillator

1000pF

C21

1000pF

C22

39pF

C23

0.01

C24

220k

R4

4.7kR5

1SV101D2

10k

VR2

10k

VR3

CP2

100pF

C6

100pF

C7

BFOCP1

0.1

C10

4.7kR310k

VR1

SW-1

45pTC1 45pTC2

SSB CW

+

1

2

3

4

8

7

6

5

Gain

Bypass -

Gain

Vs

GNDLM386

AF Amp.

IC-3

10µF

C3

0.01C4

100µF

C1

100µF

C2

100R1

10R2

STEREO JACK

J1

6.000MHz

X1

6.000MHz

X2

6.000MHz

X3

6.000MHz

X4

Fuji QRPAll rights reserved

0.01C5

INGND

OUT

78L05

REG-2

+12V1N4007

D1

+R from T7

100µHRFC1

220µH

RFC24.7µH

RFC3

2.2µH

RFC4

2.2µH

RFC5

2011 Dayton Hamvention Ver.2 15/June/2011