Logging on from work: Garey, I thought about that last night and, as luck would have it, I had an extra good 6HS6, which I swapped. There was no change.
The PTO seems to be a bit better with the cover removed, not the entire unit. Of course the frequency of the PTO changes considerably with the cover off. It's got me scratching my head, as there should really be no significant heat being generated in there... W1ES Date: Mon, 18 Jul 2011 10:11:15 -0400 From: Garey Barrell <[email protected]> To: [email protected] Subject: Re: [Drakelist] R-4A PTO, Act III Message-ID: <[email protected]> Content-Type: text/plain; charset=windows-1252; format=flowed Steve - This has been 'one of those' problems! Just a quick question.... I've forgotten if you said the PTO was stable outside the radio? IF so have you subbed the PreMixer tube? Possible load change on the PTO due to a tube anomaly? 73, Garey - K4OAH Glen Allen, VA _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
