Bill of Material

Printed Circuit Board (One channel)

2   100 kohm 1/2 W Resistor, Metal oxide 1% R1,2
2 1.2 kohm 1/2 W Resistor, Metal oxide 1% R3,4
2 2SK170BL
JFET J5,6
2 560 ohm 1/2 W Resistor, Metal oxide 1% R7,8
1 50 ohm
Potentiometer P9 Bourns type 67W
1 2SC1775
Transistor Q10
1 470 ohm 1/2 W Resistor, Metal oxide 1% R11
1 1 kohm 1/2 W Resistor, Metal oxide 1% R12
2 470 ohm 1/2 W Resistor, Metal oxide 1% R13,14
2 680 ohm 1/2 W Resistor, Metal oxide 1% R15,16
2 2SB716
Transistor Q17,18
2 2SD756
Transistor Q19,20  
1 24V 1/2 W Zener Diode D21
1 470 ohm 1/2 W Resistor, Metal oxide 1% R22
1 8.2 ohm 1/2 W Resistor, Metal oxide 1% R23
1 22 pF
Capacitor, Ceramic NP0 C24
1 16 kohm 1/2 W Resistor, Metal oxide 1% R25
2 5.6V 1/2 W Zener Diode D26,27
1 10 kohm 1 W Resistor, Metal oxide 2% R28
2 100 nF 100 V Capacitor, MKT C29,30 Pin distance 5 mm
2 560 ohm 1/2 W Resistor, Metal oxide 1% R31,32
1 2SB716
Transistor Q33
1 2SD756
Transistor Q34
2 1 kohm 1/2 W Resistor, Metal oxide 1% R35,36
2 30 ohm 1/2 W Resistor, Metal oxide 1% R37,38
1 2SA1358
Transistor Q39  
1 2SC3421
Transistor Q40
2 120 ohm 1/2 W Resistor, Metal oxide 1% R41,42
2 30 ohm 1/2 W Resistor, Metal oxide 1% R43,44
2 56 pF
Capacitor, Ceramic NP0 C45,46
1 2SC3421
Transistor Q47
1 2SA1358
Transistor Q48
2 5.6 ohm 1/2 W Resistor, Metal oxide 1% R49,50
2 4.7 ohm 1/2 W Resistor, Metal oxide 1% R51,52
2 0.22 ohm 5 W Resistor, Wire wound R53,54
1 2SA1216
Transistor Q55
1 2SC2922
Transistor Q56
2 51 ohm 1/2 W Resistor, Metal oxide 1% R57,58
2 100 nF 100 V Capacitor, MKT C59,60 Pin distance 5 mm
2 470 µF 63 V Capacitor, Electrolytic C61,62  
2 2.2 µF 100 V Capacitor, MKC C63,64 Pin distance 22.5 mm
2 10 kohm 1/2 W Resistor, Metal oxide 1% R71,72
1 1 Mohm 1/2 W Resistor, Metal oxide 1% R73
1 TL071   Operational Amplifier E74  
1 100 nF 100 V Capacitor, MKT C75 Pin distance 5 mm
1 180 kohm 1/2 W Resistor, Metal oxide 1% R76
2 1 kohm 1/2 W Resistor, Metal oxide 1% R77,78
2 15V 1/2 W Zener Diode D79,80
2 100 nF 100 V Capacitor, MKT C81,82 Pin distance 5 mm
1

Printed circuit board








 

 

Power Supply (Two channels)
1 4 A 250 V Fuse, slow F1
1 16 A
Mains switch S2
1 2x18 V 500 VA Transformer T3
1 35 A 600 V Rectifier V4
2 47000 µF 40 V Capacitor, Electrolytic C5,6
1 2x22 V 50 VA Transformer T7
1 15 A 600 V Rectifier V8
2 6800 µF 63 V Capacitor, Electrolytic C9,10