This is a circuit for receiving signals from the previous transmitter. The circuit uses a common phototransistor. It was found in the August 1984 issue of Radio Electronics magazine.
We found this circuit in Motorola's Linear Databook in 1990. The integrated circuit used is no...
This circuit emits an alert sound (interval beeps) if the car lights are left on and the ignition key...
This oscillator produces a signal with a central frequency in 1 MHz. This frequency can be...