This circuit can be used as an answering password system in a store, office, or other location. The circuit is from Intersil using components of the time. The circuit is from the 80's.
This relaxation oscillator takes advantage of the negative resistance characteristics of a...
Tone controls for audio applications can also be considered filters that must attenuate certain...
This circuit was found in a 90s Electronics Now. The circuit can use a TIC106 for the SCR....