This circuit for igniting gas flames was found in a 1967 Electronic Design. The SCR firing device is a gas lamp of the time.
This Electronics Now circuit provides a signal when the voltage of a source drops below a...
Found in a 90s Popular Electronics, this circuit excites a 40 kHz ultrasonic transducer. The...
Found in a 90s Maxim's documentation, this circuit applies to almost any comparator. | Clique na...