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WB6NVH-GEOFF · 24th Sep 2016, 7:57 am

ESR meters are for checking electrolytic capacitors, not low value micas or ceramics. 1 mfd is generally the lower limit for these.

If they are shorted, a simple VOM will tell you. If they are breaking down under high voltage, you need a capacitor tester that applies rated voltage, such as an Eico 950 or Sprague Tel-Ohm-Mike, not sure what the equivalent in the UK would be. Or just change the capacitors and move on with testing.

24th Sep 2016, 7:57 am	#12
WB6NVH-GEOFF Tetrode Join Date: Aug 2013 Location: Monterey, California USA Posts: 51	Re: SP / Sailor T128 problems - valve help please ESR meters are for checking electrolytic capacitors, not low value micas or ceramics. 1 mfd is generally the lower limit for these. If they are shorted, a simple VOM will tell you. If they are breaking down under high voltage, you need a capacitor tester that applies rated voltage, such as an Eico 950 or Sprague Tel-Ohm-Mike, not sure what the equivalent in the UK would be. Or just change the capacitors and move on with testing.