PC address decoder (CB20536E)

This TTL decoder circuit for PC ports was found in a document from 1992. The power supply can be PC's own circuit.

STEVAL WESU1 Wearable Reference Design (COM009E)
Mouser Electronics is now offering a reference design board from ST Microelectronics STEVAL-WESU1...
Regenerative 4-transistor receiver (CB20569E)
This sensitive receiver with earphone was found in an English documentation from 1963. The...
Whois the fast For 3 Competitors (CB3860E)
The SCR sector of this circuit can be powered by high voltage AC and instead of the LEDs we can...