Its not a 4CX100,000E though, its a 4CW100,000E. Maybe he will run it
air cooled!
Biggest in the world? What?
He hasn't seen commercial HF amplifiers and transmitters that use tubes
requiring cranes. At work I built a push pull HF amplifier 27 years ago,
using pair of TH555A, 200 kW tetrodes. Although it is pulsed and not
continuous carrier, it has the same 15 kV plate voltage, 1250 volts on
screen, I chose not to use the 4CW150,00E at the time, had two of them
plus new sockets. The TH555A have pyrolytic graphite grids. It has run
all these years, at a single freq of 2.795 MHz. The tubes are running
class A, pulsed, BTW. Quiescent plate current during the pulse is 40
Amps each tube.
73
John
K5PRO
Message: 1
Date: Wed, 18 Sep 2024 11:59:12 -0400
From: "Chris Smart \(ve3rwj\)"<ve3rwj@winsystem.org>
To:<amps@contesting.com>
Subject: [Amps] 100 KW probably on 27.025?
Message-ID:<01e701db09e3$b4e16c60$1ea44520$@winsystem.org>
Content-Type: text/plain; charset="us-ascii" https://www.youtube.com/watch?v=jbD0wEPVv3s Message: 2 Date: Wed, 18
Sep 2024 12:36:50 -0400 From: "Mike McCarthy, W1NR"<lists@w1nr.net>
To:amps@contesting.com
Subject: Re: [Amps] 100 KW probably on 27.025?
Message-ID:<8d9b47fe-a086-4b74-94d3-328da307f5a3@w1nr.net>
Content-Type: text/plain; charset=UTF-8; format=flowed
A 4CW100,000E draws more than twice the ham legal limit, 3300 watts,
just to light the filaments.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|