[Top] [All Lists]

Re: [Amps] Hi Pot Test Procedure?

Subject: Re: [Amps] Hi Pot Test Procedure?
From: Gary K9GS <>
Date: Mon, 13 Feb 2012 18:29:19 -0600
List-post: <">>
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<>
>    To: AMPS Mailing List<>
>    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:<>
>    Greater Milwaukee DX Association: 
>    Society of Midwest Contesters:<>
>    ************************************************
>    _______________________________________________
>    Amps mailing list
> _______________________________________________
> Amps mailing list



Gary K9GS

Check out K9NS on the web:
Greater Milwaukee DX Association:
Society of Midwest Contesters:


Amps mailing list

<Prev in Thread] Current Thread [Next in Thread>