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Re: [Amps] 8877 Amplifier Photos

To: "Jim W7RY" <jimw7ry@gmail.com>, "AMPS" <amps@contesting.com>
Subject: Re: [Amps] 8877 Amplifier Photos
From: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 2 Mar 2012 16:14:54 +0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
It seems use a pot  anda  digtal pannel meter as  counter is that right?
What POT do you use?I 'm designing my big amp what used a 4CX5000R, I
use a long life Plastic Pot( 30 million times) and LCD pannel meter.
   73!Hsu

-----原始邮件----- 
From: Jim W7RY
Sent: Friday, March 02, 2012 2:40 PM
To: AMPS
Subject: [Amps] 8877 Amplifier Photos

I have just posted many more pictures of my homebrew 8877 amplifier on 
Photobucket:

http://s900.photobucket.com/albums/ac206/w7ry/8877%20Amplifier/?start=all

The amp is patterned after the K8RA design that has been in the handbook for 
a number of years. I used a switched tuned input board by WD7S. I also used 
his amplifier control board and his high voltage board as well.

Let me know if you have any comments or questions.  1500 watts + on all 
bands with about 30-40 watts of drive with 4000 volts on the plate.

73
Jim W7RY
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