[R-390] Capacitor tester...

[Drew P.]

Barry wrote:

"While there are lots of choices, one of the nicer things about the Tel-Ohmike and other testers like it is the ability to put a bias on the device under test (DUT) and measure leakage.  I have a General Radio 1617B that will do that.  I just bought a Marconi TF-1313 that's supposed to be a 1/4% bridge but doesn't have quite the voltage bias capacity of the Sprague or the GR."

For leakage testing with a reasonably substantial applied voltage, don't forget the method advocated by Dr. Jerry.  This method uses a DC power supply in series with a high impedance voltmeter such as a DVM. More about this method and multitudinous other R-390 topics will be found in "Pearls of Wisdom" at r390a.net.

Drew