Multi Tube Amplifier (T446E)

Obtained in MIT documentation this circuit uses several tubes to obtain a large gain in the amplification of small signals.

Sine Inverter 100 W x 60 Hz (CB20079E)
This sophisticated circuit is from a 1975 documentation. The components are from the time and the...
Switching Regulator (CB14060E)
The circuit presented is from a 1972 RCA technical documentation. The integrated circuit consists of a...
Decoder For Stereo TV (CB16034E)
This circuit, suggested by National Semiconductor, decodes audio signals from stereo TV...