|[Hallicrafters] SX28 hot & blue 6V6s|
km1h at jeremy.mv.com
Thu Aug 25 21:22:16 EDT 2011
Likely leaky input coupling caps putting some positive bias on the grids.
That will also take out the transformer.
----- Original Message -----
From: "Guido" <laffitte at prtc.net>
To: <hallicrafters at mailman.qth.net>
Sent: Thursday, August 25, 2011 8:40 PM
Subject: [Hallicrafters] SX28 hot & blue 6V6s
> It has been a while since my last post but I keep a daily track of this
> list. My SX28 had its first audio transformer replacement about two years
> ago with two new audio tubes. These are running hot and with a clear all
> around bluish glow. They run too hot and I don’t think this is normal
> although we know that 6V6s tend to run with some extra heat but not this
> much. I am sure that this has been discussed before but either I missed it
> or my almost 59 years neurons are being depleted. Opinions will be
> Best 73s
> Guido KP4FAR
> Hallicrafters mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hallicrafters
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Hallicrafters at mailman.qth.net
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1392 / Virus Database: 1520/3857 - Release Date: 08/25/11
More information about the Hallicrafters mailing list
This page last updated 19 Feb 2018.