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Re: [CQ-Contest] Pre tuned Hf amps

To: cq-contest <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Pre tuned Hf amps
From: Doug Smith W9WI <w9wi@earthlink.net>
Date: 25 Sep 2006 11:41:20 -0500
List-post: <mailto:cq-contest@contesting.com>
On Sun, 2006-09-24 at 22:15, peter.voelpel wrote:
> We do that as well at DF0CG/DR1A.
> One 20KVA supply for amps with 2xQB5/1750, similar to 4-400A but a bit
> bigger (500W dissipation). 

K4VX also uses monoband amps, though with separate power supplies.  One
problem with the single-supply design is that a single failure puts
*all* bands on low power, not just one band.  (and with separate
supplies, if you have a failure on one supply/band you can use an
off-the-shelf commercial amp to fill in.  With a single supply, you need

ISTR W0AIH also uses multiple monoband amps.
Doug Smith W9WI
Pleasant View (Nashville), TN  EM66

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