Simple 1-tube receiver (T960E)

This 1V heater tube circuit was found on a Radio Craft from 1945. The circuit is for medium wave and can be used as a tuner.

Silicon diode tester (CB23829E)
We found this test circuit in Radio Electronics magazine from July 1962. The circuit uses...
LT3518 2.3 A Boost Converter (CB12551E)
In the figure we have another application for the LT3518 integrated circuit from Linear Technology...
1 kW SCR Flip Flop Flasher (CB6767E)
This circuit was obtained from a 1966 General Electric manual. The circuit applies only to...