Found in Ferranti's 1969 documentation this circuit has a maximum operating frequency of 7.5 MHz. The circuit can be designed with modern transistors.
This circuit is from 1968 General Electric documentation. It can certainly be adapted for any...
This tester from a 1960 magazine is only for capacitors with insulation voltages above 200 V (110...
Found in a 1991 publication this circuit can be assembled with more modern components. We can use...