Q1

BC556AP

1

2

L1

D1

1N4148

C3

47N

C4

470n

+12V

R1

16k

R2

4k7

COMPIN

3

VCOIN

9

SIGIN

14

CX1

6

CX2

7

INH

5

R1

11

R2

12

PP

1

PC1OUT

2

PC2OUT

13

VCOOUT

4

DEMOD

10

ZENER

15

16

8

U1

4046

COMPIN

3

VCOIN

9

SIGIN

14

CX1

6

CX2

7

INH

5

R1

11

R2

12

PP

1

PC1OUT

2

PC2OUT

13

VCOOUT

4

DEMOD

10

ZENER

15

16

8

U2

4046

+12V

+12V

R3

47к

R4

4k7

C5

4n7

C6

4n7

R5

33k

1

2

3

U3:A 4093

VDD=+12V
VSS=GND

5

6

4

U3:B 4093

VDD=+12V
VSS=GND

R6

11k

R7

11k

C7

1mF

C8

1mF

R8

11k

R9

11k

1

2

L2

Q2

BC560

C9

47n

+6V

+12V

R10

11k

C10

100n

3

2

1

8

4

U4:A

TL062

+12V

R11

2k2

R13

8k2

R12

20k

+6V

5

6

7

8

4

U4:B

TL062

R14

5k1

+6V

+12V

R15

10k

R16

10k

X

1

Y

2

C

13

U5:A

4066

VDD=+12V
VSS=GND

X

11

Y

10

C

12

U5:B

4066

VDD=+12V
VSS=GND

X

4

Y

3

C

5

U5:C

4066

VDD=+12V
VSS=GND

X

8

Y

9

C

6

U5:D

4066

VDD=+12V
VSS=GND

3

2

1

4

11

U6:A

TL064

5

6

7

4

11

U6:B

TL064

10

9

8

4

11

U6:C

TL064

12

13

14

4

11

U6:D

TL064

R17

33k

R18

33k

+12V

+12V

C11

100n

C12

100n

+6V

+6V

R19

33k

R20

33k

R21

27k

R22

27k

R23

27k

R24

27k

C13

100n

C14

100n

+6V

+6V

+12V

+12V

C15

100n

C16

100n

R25

20k

R26

39k

R27

20k

R28

39k

R29

39k

R30

39k

R31

10k

R32

10k

+6V

+6V

A

B

A

B

3

2

1

8

4

U7:A

TL062

C17

1mF

C18

1mF

+12V

+6V

R33

1M5

R34

1M

C19

10n

C20

10n

R35

220k

R36

220k

D2

1N4148

D3

1N4148

R37

10k

R38

10k

R39

20k

R40

20k

+6V

D4

1N4148

D5

1N4148

+6V

R41

3M

3

2

6

7

4

5

1

U8

LF355

+12V

+6V

D6

1N4148

D7

1N4148

+6V

D8

1N4148

D9

1N4148

+6V

Q3

2N3819

+6V

R42

1M

R43

20k

1

2

HOLD

5

6

7

8

4

U7:B

TL062

R44

10k

R45

10k

R46

10k

1

2

SENS

3

2

6

7

4

5

1

U9

LF355

R47

1M5

R48

1M

C21

10n

C22

10n

+12V

R49

47K

R50

47K

R51

270k

R52

270k

R53

270k

R54

270k

+12V

+12V

C23

1uF

1

2

AUTO

R55

47k

Q4

BC556AP

Q5

BC548BP

C1

22n

C2

22n

+12V

R56

82k

R57

16k

R58

3k9

Q6

BC548BP

R59

82k

+12V

Q7

BC556AP

Q8

BC556AP

VOLUME

10k

+6V

Q9

BC548BP

Q10

BD138

C24

4.7uF

R60

6.8

Q11

BD137

C25

470uF

+12V

BATTERY

SUPPLY

18V

BATT

C26

470uF

D10

1N4007

Q12

BD138

Q13

BC548C

R61

5k1

+6V

3

2

6

7

4

1

5

U10

741

C27

220uF

+18V

+18V

R62

10k

R63

10k

+12V

3

2

6

7

4

1

5

U11

741

+6V

+18V

D11

6V0

C28

10uF

8

9

10

U3:C 4093

VDD=+12V
VSS=GND

12

13

11

U3:D 4093

VDD=+12V
VSS=GND

R64

11k

C29

1n

TUNE

GROUND

DISKRIM

PICKUP COIL

DRIVING

COIL

MONTANA VLF

LS1

SPEAKER

R65

2k7

+12V

C30

470uF

+12V

VLF

MONTANA

+

-

TX

RX

VLF

MONTANA

+

-

TX

RX

VLF

MONTANA

+

-

TX

RX

VLF

MONTANA

+

-

TX

RX