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From: "Bill Turner" <dezrat@outlook.com>
Sent: Saturday, January 24, 2015 5:03 AM
To: "Amps group" <amps@contesting.com>
Subject: Re: [Amps] 5 Minutes for Ameritron 811H to warm up?
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On Fri, 23 Jan 2015 21:46:31 -0500, KM1H wrote:
Just food for thought.
REPLY:
All the currently manufactured high-end amps I am aware of use ceramic
tubes (or transistors). Also food for thought.
I will grant you the 3-500Z family can be a good choice for hams
because of their relatively low cost and wide availability, but they
have their problems too, mainly gassiness after years of storage and
poorly designed filament pins (soldered instead of welded, depending
on manufacturer).
Bill W6WRT
There are at least two 2 X 3-500 amps on the market these days and both in
the $3K range which Is
my Marginot price line that seperates high end from the rest.
As far as ceramic tubes the majority these days are Chinese and Russian.
Some offer an ovepriced Eimac as an option.
Carl
KM1H
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