Dwell Angle Analyzer (CB6335E)

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.

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Heads or Tails (CB24257E)
This TTL heads or tails circuit was found in the July 1973 Radio Electronics magazine. The LEDs...
Electronic Power Switch (CB11322E)
With this circuit (shield) we can control a load from 500 mA to 1 A, depending on the transistor, using a...
Relay Flasher (CBB10606E)
We found this circuit in a Radio & Electronics Constructor from November 1975. The magazine no longer...