TTL Counter (CB21360E)

This counter from 0 to 9999 was found in English documentation. The power source must be 5V with at least 1A.

CMOS Time Base (CB15689E)
This circuit generates 50, 100 and 200 Hz signals from a 3.2768 MHz crystal and has outputs...
Remote Control Transmitter (CB22532E)
This 300 kHz and 400 kHz two-channel transmitter for TV remote control appeared at Radio...
BA1404 FM Stereo Transmitter (CB25473E)
Based on the BA1404 integrated circuit, this circuit was found in the July 1992 issue of Radio...