Yes indeed, and Amen!
One of the advantages in homebrewing amps is that one can overdesign to an
extent that would be totally unecomic from a commercial point of view.
Now if I can just find the hours to lower that 4-1000 into the rf deck that
came from an MF transmitter at the old ZLW coast station....
73
Baz
end
Barry Kirkwood PhD ZL1DD
Signal Hill Homestay
66 Cory Road
Palm Beach
Waiheke Island 1240
NEW ZEALAND
www.waiheke.co.nz/signal.htm
----- Original Message -----
From: Phil Clements <philk5pc@tyler.net>
To: Barry Kirkwood <bjk@ihug.co.nz>; <amps@contesting.com>
Sent: Tuesday, 15 May, 2001 9:47 AM
Subject: Re: [AMPS] Thar she blows
> > I gather SB220 have a reputation for good tube life, altho the available
> > voltage means tubes are slightly under run.
>
> How about 45% under run, Dr. Barry!
> Too bad most amps on the commercial market today have no such
> headroom in power or cooling.
>
> I have worked on many of the Heath SB series amps. A lot of the
> tubes are 25 + years old, and still going strong. Most of the tube
> failures I have seen in Heath gear are from mistreatment and
> failure of other components.
>
> (((73)))
> Phil, K5PC
>
>
>
>
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