[R-390] Capacitor leakage testing

[Perry Sandeen]

List,
If you want to test your high voltage capacitors for leakage there are a couple on ways to do it.
One is to buy a Sprague TO-6 or similar that will apply the rated voltage to the caps and measure leakage.
A much, much older way is to use a HV supply and a 11 megohm vtvm. One end of the cap goes to the B+ and the other to the input lead to the vtvm and the vtvm ground goes to the poer supply ground. Using Ohms law of 11 megs and the B+ value and read the dc vtvm scale to calculate leakage.
NOTE. After testing your capacitor make sure to keep both leads shorted for a 10 or more minutes as the *memory* voltage can give you a nasty shock the next day.  Found that out the hard way.
Regards,
Perrier