Found in a 90s American documentation, this circuit is used in vehicles with contact breaker. The circuit does not provide much additional information.
This circuit is from the 1960 Mullard transistor manual. The transistors are germanium from the...
Found in a 1990 Electronics Handbook, this circuit causes an LED to flash when the phototransistor receives...
We found this circuit in an old manual. The bypass range is 20 MHz and the power supply must be...