Phase Detector 7400 (CB22427E)

This circuit detects the phase of a signal. As it is a TTL circuit, it must be powered by a voltage of 5 V.

Bq26601 3 A Battery Charger
July 2017 - Texas Instruments' new 3 A bq25601 single cell battery charger can be found on Mouser...
Ring Counter using PUT (CB5205E)
This circuit was found in old documentation. PUTs are uncommon components today. The circuit...
0 to 20 second timer (CB20370E)
This simple timer with unijunction transistor was found in an old American technical...