Crystal oscillator (CB9504E)

This circuit was found in a 90s Popular Electronics. It can generate signals from 3 to 10 MHz.

CMOS Driver (CB13776E)
This circuit is from a 1976 Motorola CMOS manual. It can be implemented with modern Darlingtons like...
Switching Regulator (CB14060E)
The circuit presented is from a 1972 RCA technical documentation. The integrated circuit consists of a...
MW FM SW Transmitter (CB16659E)
We found this transmitter circuit for different frequency ranges in a 1992 documentation. The...