  元件BOM表： R1 1.5K ¼ Watt ResiSTor (opTIonal, tie pins 6 & 5 of IC1 together if not used.) R2,R3 0.1 Ohm 10 Watt Resistor (Tech America 900-1002) R4 270 Ohm ¼ Watt Resistor R5 680 Ohm ¼ Watt Resistor R6,R7 0.15 Ohm 10 Watt Resistor (Tech America 900-1006) R8 2.7K ¼ Watt Resistor R9 1K Trimmer Potentiometer (RS271-280) R10 3.3K ¼ Watt Resistor C1,C2,C3,C4 4700 Microfarad Electrolytic Capacitor 35 Volt (observe polarity) C5 100 Picofarad Ceramic Disk Capacitor C6 1000 Microfarad Electrolytic Capacitor 25 Volt (observe polarity) IC1 LM723 (RS276-1740) Voltage Regulator IC. Socket is recommended. Q1 TIP3055T (RS276-2020) NPN Transistor (TO-220 Heat Sink Required) Q2,Q3 2N3055 (RS276-2041) NPN Transistor (Large TO-3 Heat Sink Required) S1 Any SPST Toggle Switch F1 3 Amp Fast Blow Fuse D1-D4 Full Wave Bridge Rectifier (RS276-1185) T1 18 Volt, 10 Amp Transformer Hammond #165S18 (Tech America 900-5825) : |
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