Switch with automatic shutdown (CB21258E)

This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the trigger time.

Bridged output amplifier (CB23540E)
This circuit was obtained from a Radio Electronics from October 1963. The 4 transistors must be...
Sinusoidal Limter (CB13249E)
The purpose of this circuit is to cut the peaks of a sinusoidal signal so that it is close to a...
Astable LED (CB12038E)
This astable multivibrator configuration causes two LEDs to alternately flash at a frequency...