This voltage sensor limits the discharge of a Nicad battery. We found it in an American documentation from 1968. Equivalent components can be used.
This circuit was found in a 1980s documentation. Q1 and Q2 can be BC548 and SCR a TIC106. The...
We found this circuit in 1980s documentation. It can be used independently as CW or by exciting a...
We found this third-order Butterworth asymmetric filter in an old manufacturer documentation. The...