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Re: [Amps] 3-500Zs inverted

Subject: Re: [Amps] 3-500Zs inverted
From: Pete Smith N4ZR <>
Date: Fri, 04 Apr 2014 06:42:44 -0400
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Thnks for all the serious replies, and I didn't mind the horsing around. Fortunately, the very first quoted the tube data sheet, which I did not have, and hadn't thought to Google, because I did not know the info would be there.

73, Pete N4ZR
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On 4/3/2014 9:19 AM, Pete Smith N4ZR wrote:
I need to trouble-shoot my QSK system, which is built into my SB-220. Will it do any harm to apply filament and plate voltages, but no drive, to the 3-500Zs in the inverted position for a few minutes at a time?

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