This old automotive circuit was found in an August 1971 Radio Electronics magazine article. The transistor is a Darlington transistor rated for the wattage of the bulb.
To divide by an odd number‘ means not only the need for flip-flops, but some additional logic too. The...
This circuit, from a 1975 technical documentation provides a gain of 14 dB at signals from 500 kHz to...
This circuit was found in American documentation from the 60's. The transistors are made of...