4049 Oscillator with Mark and Space (CB24857E)

With mark and space adjustment this circuit was found in November 1984 Radio Electronics. The base frequency depends on C1.

Amplifier for ceramic capsule (CB9059E)
Found in documentation from the 1980s, this amplifier uses an integrated circuit from the time....
Circuit Breaker with the CK722 (CB22520E)
This circuit is from a Radio Electronics from November 1957. The circuit uses a relay depending on the...
Car Alarm Simulator (CB18821E)
It is a simple blinker that simulates the action of an alarm when installed on the dashboard of a...