Thanks for the reply Brad.
I took the tubes into the office today. The hi-pot tester there only
went to 5kV. It was so fast to test I ended up going between the anode
and each tube element. No problems on either tube although the tech
that was watching me was fascinated by the tube.
He's never seen a vacuum tube before except in text books, much less one
not made of glass or one that big. When he asked about the voltages
normally applied (I showed him a spec sheet) his eyes got really big and
I got the "you're nuts" look :)) When I applied the HV he backed away
saying he's never cranked the hi-pot to 5kV before :))
Kinda made my day.............
On 2/12/2012 7:51 PM, B Osburn wrote:
> Since you are just checking the integrity of the vacuum I just did anode to
> cathode. RLM may say different.
> Brad AB0YD
> ----- Original Message -----
> From: Gary K9GS<mailto:garyk9gs@wi.rr.com>
> To: AMPS Mailing List<mailto:amps@contesting.com>
> Sent: Sunday, February 12, 2012 6:09 PM
> Subject: [Amps] Hi Pot Test Procedure?
>
>
> What is the proper procedure for Hi-Pot testing a tetrode, in this case
> a GU74B?
>
> Apply potential between anode and any other element? I did see one
> mention of applying potential between the anode and the nearest grid but
> is this correct?
>
>
> --
>
>
> 73,
>
> Gary K9GS
>
> Check out K9NS on the web: http://www.k9ns.com<http://www.k9ns.com/>
> Greater Milwaukee DX Association:
> http://www.gmdxa.org<http://www.gmdxa.org/>
> Society of Midwest Contesters: http://www.w9smc.com<http://www.w9smc.com/>
>
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--
73,
Gary K9GS
Check out K9NS on the web: http://www.k9ns.com
Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
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