Bidirectional buffer (CB9317E)

This circuit was obtained in a 90s Electronic Design. The circuit uses components from that time.

Regulator Crowbar Protection (CB13916E)
We found this circuit in a 1978 documentation. The SCR conducts when the regulator's output...
Micro Audio Preamplifier (CIR818E)
This small audio amplifier can be used with microphones and other audio sources. The circuit can...
20 V amplifier power supply (CB8668E)
This source for 50 W amplifiers per channel was found in 1967 Delco documentation. Transistors are from...