Crystal oscillator (CB9504E)

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

455 kHz generator (CB8218E)
This circuit was obtained in a 90s Popular Electronics. It is used for tuning on AM radios. The...
Bench Calibrator (CB19196E)
This circuit is tuned to produce pulses of 1.5 ms and 5.5 ms of separation for various settings with...
25 W FM Transmitter (CB17438E)
The integrated circuit used in this 2001 project is not very common. The circuit has an excellent power...