Video Amplifier (CB21321E)

Found in Popular Electronics from the 90s, this circuit is intended for amplifying analog video signals.

Step Down Converter with uA78s40 (CB14538E)
The component used in this circuit is uncommon today, as the circuit was obtained from Motorola's Linear...
Infrared Audio Link (CB11967E)
This simulated circuit on the NI Multisim transmits modulated infrared signals with the audio...
Limiter for Nicad discharge (CB8382E)
This voltage sensor limits the discharge of a Nicad battery. We found it in an American...