Integrated regulator (CB7512E)

This circuit was found in a RCA documentation from 1977. The integrated circuit is uncommon today. It is only a reference.

Oscillator with constant current load (CB8038E)
This linear oscillator was found in a 1968 publication. The operational amplifier is from that...
SCR Power control (CB23656E)
This circuit was found in Radio Electronics from May 1965. The SCRs and transistors are from that...
Audio Generator (CB18989E)
This Wien bridge circuit, using a 741 operational amplifier, was suggested by Texas Instruments in its 1996...