Yep, Phil. I like the multi-tap transformers used by Ameritron. Allows
great flexibility, although the optimum balance of filament voltage
(critical) and high voltage (not critical, but the more, the merrier) is
often not achievable.
-WB2WIK/6
"If everything seems under control, you're just not going fast enough." -
Mario Andretti
> -----Original Message-----
> From: Phil Clements [SMTP:philk5pc@tyler.net]
> Sent: Wednesday, August 28, 2002 2:40 PM
> To: Steve Katz; '2'; Randall DuCharme; AMPS
> Subject: Re: [Amps] Which 3-500Z
>
>
> > When I had a 2KD5 many years ago, even its filament voltage was too high
> > with the normal 240V operating primary tap. What were they thinking?
> (It
> > was probably just about right for operating in VK with 265V line
> voltage...)
>
> Prior to sometime in the 1980's, most amp manufacturers specified
> transformer primary windings for 230 volts. This was the average
> voltage found in a residence in those days. Now 240-246 volt mains
> are the norm. (at least here in Texas) Old Henry's are not the only
> amps that need checking. I have never checked an Alpha 77 series
> amp that had the proper heater voltage when plugged into a 245 volt
> line.
>
> (((73)))
> Phil, K5PC
>
>
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