Schema:
Komponenten:
R1, R8: 2k2
R2, R3, R6, R7: 1k
R4: 22 ohm
R5: 270k
R9: 0,16 ohm (6 stuks 1 ohm parallel)
P1: potmeter 10k
P2: instelpotmeter 100k
C1: 2200uF
C2: 100nF
D1, D3: 1N4001
D2, D4: 1N4148
T1, T4: BC557
T2: BC547
T3: BD676
IC1: uA741
Printlayout: