We found this circuit in an old magazine. This is an assisted ignition, where the contact breaker is kept. The circuit uses transistors that are uncommon today. Equivalents can be tested.
This circuit, which uses a VU-meter with zero in the center of the scale, which is not easy to...
We found this circuit with a Q factor of 25 in the Linear Applications Handbook by National...
Found in a 1968 Motorola manual, this DC circuit uses components from the era. The circuit fires in...