[Milsurplus] AT-12 Photo - 814 vs 807

[Hubert Miller]

Exactly. For some reason, coming up with 1000 or 1100 volts is an increment more difficult than say 600 or so, which you can find many transformers for.
Plus, i really have no interest in running a CW rig more than about 75  watts or so. I could pull one 814 and run the remaining one on 600 volts, or put in
one or two 807 with some nonmajor wiring revision. Decisions, decisions. ( And very little action. )

In the wiring revision department, many years ago, i replaced the 2E22 in a TRC-10 with an 807. All i had to do was change the plate cap size. The TRC-10
did have an issue AC supply, but using it, the radio had a pretty bad hum - there was no filament balance or anything like that. I thought that was kind of 
odd - but "it did work", with the hum, regardless.
-H 

-----Original Message-----
From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Richard
Sent: Wednesday, March 8, 2017 1:18 PM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] AT-12 Photo - 814 vs 807

Yes, all true, but you don't have to change the tube socket. Wiring changes are not as onerous as construction changes.

RB, AA1P