Found in a 1968 US documentation, this circuit shows how to use the resistance-scale multimeter to analyze the dwell angle of old platinum cars.
This circuit generates interval signals controlled by a light sensor. The basic time of the sound...
This 1968 Mullard circuit detects fire by smoke using LDR-type sensors. The circuit makes use of...
With this circuit it is possible to generate 3-phase rectangular signals from a clock signal. The...