ID:
2042
Maker's Name:
Unknown
Where made:
USA
Dimensions:
27 × 14 × 2.2 cm
There are six multistage amplifiers on this board, with chopper stages at the input end..
When measuring small DC voltages, it is easier to chop them into square wave segments, present the segments as AC signals to an amplifier, and rectify the amplifier output to DC. This is easier and more reliable than trying to amplify DC voltages.
