Re: [Amps] Tube Burn In Question.

[R.Measures <r@somis.org>]

On Jun 18, 2004, at 7:17 PM, ab5mm wrote:

> The 20+ year old 3-500Z Eimacs have lost their brilliance.

  See an ophthalmologist ASAP..

> I finally broke down and purchased a new pair to go into the Henry 
> 3K-A today at HAM-COMM.
> My question is how should I "burn in" the tubes?

  I never have.  So far, no problem.  The Amperex and the Eimac 3-500Z 
tech data sheets say nothing about burn-in.
-  If you hear any arcing, it's not from inside the vacuum, so don't 
expect it to get better from self-gettering.

good luck, Steve

> How many hours?
> Only filament and blower on? (I did the mod to cool the pins)
> Filament voltage? (I can vary it)
> And finally, is there a general consensus on whether or not some 
> portion of the burn in time should include plate voltage (no drive, 
> just idle current? (I can vary this also)
>
> As always, Thank You for the input.
>
> Steve
> AB5MM
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps