Amps
[Top] [All Lists]

Re: [Amps] filament voltage question

To: R.Measures <r@somis.org>
Subject: Re: [Amps] filament voltage question
From: Tony King <amps@w4zt.com>
Date: Fri, 29 Oct 2004 13:52:33 -0400
List-post: <mailto:amps@contesting.com>
That's a good point Rich. In any case, a minor adjustment to the primary will bring the filament right to where you want it. I'm a firm believer in step start for filaments on expensive tubes as well as high voltage supplies. Thanks!

73, Tony W4ZT

At 09:58 AM 10/29/2004, R. Measures wrote:
Tony -- The problem with 0 - 115% variable transformers is that it is not necessary to be able to adjust the filament V more than +/- 8%. A rheostat does the job nicely.

On Oct 29, 2004, at 6:26 AM, Tony King wrote:

An easy solution would be to obtain one of the small variable transformers (I have a couple I bought on Ebay) and put it in the filament transformer primary so you can make the necessary minor adjustment. 73, Tony W4ZT
<snip>
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org


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

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