This circuit turns your air conditioner or other appliance on and off in adjustable cycles to save energy. The circuit is from a 1983 Electronics Experimenter Handbook Special projects.
The integrator in the figure is characterized by low input current and is based on an LM101A. C1...
By the components used this circuit of old English documentation can still be easily assembled. The...
This is the circuit of an amplifier for a small record player or portable electrola powered by...