Door bell – gong




R1 22 kOhm D1, D2, D4 1N4001
R2, R4 2,2 kOhm D3 BZX83V003.9
R3
180 kOhm T1, T2 BC238 (BC546, …)
C1
1000 µF/ 16 V T3 BC639
C2, C4 10 µF/50 V IO1 GI123 (SAB123)
C3 100 nF/63 V, fóliový / film Deska s plošnými spoji bcs19
Reproduktor / Speaker 8 Ohm

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