The purpose of this circuit, which we found in an August 1973 Radio Electronics issue, is to determine the characteristics of a tunnel diode.
We found this circuit in the September 1971 Radio Electronics magazine. The SCR can be any of the...
This circuit uses unijunction transistors and drives a small speaker through an output...
The circuit presented was found in the Motorola Linear Databook of 1990. The power supply is...