This circuit was found in a Hands On Electronics from the 90s. The circuit does not need a symmetrical power source. The signals with which it operates are alternating.
Indicated as a joke or challenge this circuit shows how it is possible to control two lamps using...
This circuit came out in an English publication of 1976, but it can be easily assembled using...
We found this circuit in an old documentation. The indicated solenoid is of low current type,...