Good morning,
I would appreciate some advice on a pair of new Eimac
3-500z tubes which I tested recently and both have failed.
One has an internal grid-filament short; the other has
lost vacuum and emitted metal oxide vapor when plugged in.
The tubes were purchased some years ago as spares; both tubes
are unused and still in original cartons with warranty sheets.
Since Eimac sold the glass tube division, is there any
warranty or replacement policy available?
Regards,
Martin ZL1ANJ
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