This page contains oscilloscope screenshots for various inputs to the APD gain block amplifiers. == Gain Block Amplifier Board 1 == [[image:GBA1]] --No Input [[image:GBA1-emptyinput]] --Capacitor across input [[image:GBA1-capacitorinput]] --Signal input attached; no signal [[image:GBA1-sigin-nosig]] --Signal input attached; sine wave input [[image:GBA1-sigin-yessig]] == Gain Block Amplifier Board 2 == [[image:GBA2]]