Part Total Qty. Description Substitutions
R1 1 500 Ohm 1/4 W Resistor
R2 1 3K 1/4 W Resistor
R3 1 1K 1/4 W Resistor
R4 1 15 Ohm 1/4 W Resistor
R5 1 230 Ohm 1/4 W Resistor
R6 1 15K 1/4 W Resistor
R7 1 0.2 Ohm 10 W Resistor
C1 1 0.1uF 25V Ceramic Capacitor
C2 1 1uF 25V Electrolytic Capacitor
C3 1 1000pF 25V Ceramic Capacitor
D1 1 1N457 Diode
Q1 1 2N2905 PNP Transistor
U1 1 LM350 Regulator
U2 1 LM301A Op Amp
S1 1 Normally Open Push Button Switch
MISC 1 Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output
Notes.