wrote:

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I should mention that this capacitor is in a Precision signal generator, model E-200-C.

That cap is in the AC supply circuit - right?
See bottom of this page:

https://www.antiqueradios.com/forums...p?f=8&t=363692

So it's a high voltage, ceramic cap.

Good replacement would be a 0.01uF, 2kV ceramic like this:

https://www.mouser.com/ProductDetail...Ocs5KSTQ%3D%3D

Many other sources.


.......... Phil