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 can be used for signaling a panel with a common incandescent lamp. The lamp will...
This circuit, suggested by General Electric, increases the sensitivity of a common multimeter to 1 M /...
The LM105 integrated circuit consists of a voltage regulator integrated in a metallic enclosure. The...