مجموعه الکترونیک آزمایش فتو الکتریسیته (Amplifier for photoelectric experiments with galvanometer)
Model 330402
Modern Experiments Equipment

Precision and sensitive amplifier with dc power supply and galvanometer for photocell in photoelectric experiment
Input : B NC , 1 nA min
Zero : offset Volume
DC output
Main voltage : 220 VAC , ۵۰ Hz
Earth connection