mnlgu thank you all for your help, but LF357N detector is not working ..
argue that 2 times I bought the same circuit.
lf356n things but with a liter of paint 50cm maximum
2cm 25cm maximum coin is weak due
I put
Placed components (embedded) right
Comment Designator Quantity
SKALA A1 1
CON2 BESLEME 1
16 TUR BOBIN 1
TUNE BUTON 1
15nF C1 1
1nF C2 1
10nF C3 1
1,5nF C4, C5, C6 3
220uF C7, C27 2
10uF C8 1
100nF C9, C10, C11, C14, C15, C16, C18, C19, C20, C22, C23, C24, C28 13
100uF C12, C29 2 ( C12-10mF)
15pF C13 1
47pF C17 1
10uF C21 1
220nF C25 1
47nF C26 1
10000uF C31 1
UA556 D1 1… NE556N)
4538 D2, D3 2 HCF4538BE
LF357 D4 1 LF356N)
TL062 D5, D6, D7 3 TL062CN
LM555 D8 1 NE555N
4066 D9, D10 2 HCF4066BE
20K GAIN, NOISE, TUNE 3
speaker J2 1
switch J3 1
Signal P1 1
S1 P2 1
S2 P3 1
+ P4 1
- P5 1
V1 P6 1
B P7 1
V2 P8 1
REF P9 1
200K PR1 1 220K
IRF740 Q1 1 IRF840
680K R1 1
6K8 R2, R41, R43 3
47K R3, R21, R22 3
5K6 R4, R31, R35 3
2K2 R5, R20 2 R5-680 R 2W
680R R6 1
15K R7 1
27K R8, R51 2
68K R9 1
100K R10, R11 2
10K R12, R13, R38 3
1K R14, R39, R52 3
820R R15 1
12K R16, R40 2
120K R17, R18 2
4K7 R19, R23, R24, R25, R26, R27, R33 7
56K R28, R36 2
1M R29, R30 2
330R R32, R44 2
22K R34, R42, R50 3
560R R37 1
39R R45 1
2.2R R46 1
8K2 R47 1
2K R48, R49 2
500K SENS 1
100R SES AYAR 1 1K
50K SIGNAL 1
BC546 T2, T4, T5, T6, T7, T8 6 C546B
BC557 T3, T9, T10 3 C556A
10K TRS HOLD 1
1N4148 VD1, VD2, VD3, VD4, VD5, VD6, VD8, VD9, VD10, VD11, VD12, VD13 12
1N4001 VD7 1
8V2 VD14 1
9V VD15 1
KIRMIZI VD16, VD17 2
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