Quote:
Originally Posted by EdWilliams
I took the old Hunts capacitors to work and measured them on a Fluke 171 DVM. Most of them apparently measured several times higher than their nominal value
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This is common with most digital meters no matter how good they are. On a proper capacitance bridge, they would have measured very leaky and possibly it would not have been possible to obtain a good reading.
I believe most digital meters measure capacitance by applying a small voltage and measuring the charge/discharge time. If the capacitor is leaky, the charge/discharge time will be wrong so the meter will give a false reading.
A proper capacitance bridge works differently and compares the value of the test component against a known component in a bridge circuit.
A good repair! I must look out for one of these myself. I'm told the FM performance is very good.