This semi-proportional temperature control was found in old American documentation. The components are from the period and the maximum power of 2.4 kW.
Found in National Semiconductor documentation from the 1990s, this circuit employs basic...
This circuit was obtained in a 1965 American magazine translation. The photocell can be the type...
This circuit indicates the current of a motor or other load. Resistor R has values between 470 ohm...