35 W Amplifier (T359E)

This class AB2 amplifier was obtained in a 1937 RCA tube manual. The circuit includes the dual high voltage power supply.

Speed Alarm (CB3988E)
We found this circuit in an old Mullard (Philips) documentation. The sensor consists of a...
Synthesizer Amplifier (CB1491S)
This circuit is intended for signal amplification of electronic musical instruments. We found in a...
Interface CMOS – TTL (CB394E)
Figure Bellow shows how to interface CMOS circuitos with TTL using the 4049 or 4050 IC. The power...