Receiver for the 40m band LM602 (CB25305E)

This circuit uses an FM IF transformer for tuning. The circuit is from a Radio Electronics magazine from April 1990.

Stereo Multiplexer for FM (CB17636E)
This circuit provides a multiplexed signal to be applied to the input of an FM transmitter. The...
Who is the fast (CB9809E)
This simple TTL circuit indicates which was the first to press one of the four pressure switches. The...
Car Audiovisual Indicator (CB18706E)
We found this circuit in a documentation from the 90s, which can be adapted in most cars of the...