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.
This circuit was found in the March 1997 Electronics Now magazine. It uses a common analog...
This tunnel diode circuit was found in American documentation from 1966. The tunnel diode is the...
This circuit was found in the comparator's own documentation, serving others in the same series. The...