This 1950s audio amplifier uses output tubes of type 1625 in its output stage. The Class B circuit provides a few watts of power and uses transformers that are not readily available today.
We found this circuit in an old Mullard (Philips) documentation. The sensor consists of a...
This circuit is intended for signal amplification of electronic musical instruments. We found in a...
Figure Bellow shows how to interface CMOS circuitos with TTL using the 4049 or 4050 IC. The power...