Part Type Designator Lead Spacing (Pitch) Description 0.47uF C1 0.2 - 0.4" Film Capacitor 120pF C2 0.2" Ceramic Capacitor 0.1uF C3 0.2 - 0.4" Film Capacitor 3.3nF C4 0.2 - 0.4" Film Capacitor 0.47uF C5 0.2 - 0.4" Film Capacitor 100uF C6 0.1" Electrolytic Capacitor 100uF C7 0.1" Electrolytic Capacitor 1N4148 D1 0.3" Small Signal Diode 1N5711 D2 0.3" Schottky Diode 1N5711 D3 0.3" Schottky Diode 1N4148 D4 0.3" Small Signal Diode 1N5711 D5 0.3" Schottky Diode 1N4004 D6 0.4" Power Diode 1M R1 0.6" Small Resistor 1/4 - 1/2W 470K R2 0.6" Small Resistor 1/4 - 1/2W 1K R3 0.6" Small Resistor 1/4 - 1/2W 1K R4 0.6" Small Resistor 1/4 - 1/2W 10K R5 0.6" Small Resistor 1/4 - 1/2W 10K R6 0.6" Small Resistor 1/4 - 1/2W 10K R7 0.6" Small Resistor 1/4 - 1/2W 47R R8 0.6" Small Resistor 1/4 - 1/2W LEDR R9 0.6" Small Resistor 1/4 - 1/2W typ 1k for std LED, 10-15k for high brightness LED TL072 U1 0.1" / DIP8 Dual Operational Amplifier 500KA VR1 0.2" 16mm Single Gang Pot for PCB mount, any for off-board wired 10KB VR2 0.2" 16mm Single Gang Pot for PCB mount, any for off-board wired 50KB VR3 0.2" 16mm Single Gang Pot for PCB mount, any for off-board wired 100KA VR4 0.2" 16mm Single Gang Pot for PCB mount, any for off-board wired