[Amps] Procedure for New 3-500's...

[Randall, Randy]

The burn in procedure is for new old stock Eimac's that have been noted to have seal leakage around the pins.  It has been noted that this is not useful as the plate must be hot (red hot) to activate the gettering material.  Since these are NEW recent manaufacture (and RF parts tests the tubes before shipment) I agree with Phil.  Plug them in, wait 3-6 seconds and tune her up!

Randy AB9GO

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On Behalf Of Jeff Carter
Sent: Monday, January 26, 2009 11:58 PM
To: amps at contesting.com
Subject: [Amps] Procedure for New 3-500's...

Hi all,

I just got word from RF Parts that my new tubes (3-500's from Taylor)
are on their way.

Can someone point me to a good URL or other resource on how best to
bring them up/burn them in?

They'll be in a SB-220, and I have a Variac.

I thought over the years of reading this remailer that the consensus
was to bring them up slowly to full voltage when they were brand new,
but I could be mistaken.

Jeff/KD4RBG
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