So you did this test with a cold filament, but AFTER you gettered it? Okay.
I don't really feel qualified to offer you any further advice in this
situation; but re-reading your post, my gut feeling is that it'll be OK at
the max rated voltage. But what happens when the filament is on? Does it
break down at a lower voltage?
One thing is for sure, you did right to hi-pot it the way you did. It
reminded me that I forgot about passing that advice onto the the GI-7BT ham
I mentioned. (I was going to use a negative ion generator HV power supply
to do that, which is already current limited.)
73, Mike
www.w0btu.com
On Wed, Feb 25, 2015 at 5:08 PM, nemo zilch <nemozilch@gmail.com> wrote:
> Thanks Mike. Yes I did the online research first and followed what seemed
> to be the best advice. Brought the filament up to full voltage very slowly
> in small steps, then let it run for a week and a half at full filament
> power, no plate voltage.
>
> I am doing the hi pot test with cold filament, grid grounded and positive
> voltage on the plate.
>
> Bob W4AOS
>
>
> --
> ==========================================================
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|