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Old 4th Feb 2023, 9:31 am   #13
Station X
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Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
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Default Re: Testing for leaky caps

One way of testing a grid coupling capacitor (that capacitor) in circuit is to disconnect the control grid end of it and measure the voltage between the disconnected lead and chassis. It should measure zero, but I've seen a hundred volts or more when the cap is leaky.
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