This transmitter modulator amplifier for the 11-meter band (CB) was published in Radio Electronics magazine in November 1961. The circuit is for use in a car transmitter.
This circuit can be connected to the output of alarms or sirens with the 555, CMOS or TTL,...
Found in an American leaflet from the 90s, this circuit uses an AM radio out of station to monitor...
Found in the Encyclopedia of Electronic Circuits Volume 5 of 1995 this circuit has the gain...