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 circuit can be used with any auio amplifier, converting it into a AM receiver. Antenna is a...
This circuit was designed to power the previous circuits of the wireless sound system, but it can...
This circuit is from the Motorola Linear Databook published in 1990. The circuit for 1 kHz can be...