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Re: [Amps] Alpha 77D anode choke swap?

To: amps@contesting.com
Subject: Re: [Amps] Alpha 77D anode choke swap?
From: donroden@hiwaay.net
Date: Mon, 30 Apr 2018 09:29:30 -0500
List-post: <mailto:amps@contesting.com>
But, if your doing 15kw pep, you better have your imd down by 10 db more
than the yoyo running an ameritron, or you'll instantly be run off the
band.  You won't do that with 30 uF of capacitance.  Just //wont// happen.
--Shane
KD6VXI
.
But if you have the $$$ to run 15KW ( think total system QRO++ costs... coax and antennas , change over relays, ect ) ... then the costs of occasionally replacing tubes with handles is all part of the yearly expenses.

)n the other hand, in commercial broadcast I've been running a 4CX20,000 @ 11KV @ 3.5A for over three years now... 28KW FM output and 24/7 at the end of a "really nasty" utility feed, and like the Energizer Bunny, it just keeps on running and running with 1960's ( really slow ) relay overload logic on the screen and cathode.

Don W4DNR



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