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Author Topic: Swan 1200x amp  (Read 1013 times)
N4AEQ
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Posts: 91




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« on: January 31, 2013, 07:47:12 PM »

 I bought a station setup which included a Swan 1200x, has anyone ever used one of these.  I normally work  6 or 160 meters, the amp specs say 3-35mhz so it
won't work for me. Ever know of one being moded to 6 or 160m?
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AD4U
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Posts: 2179




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« Reply #1 on: February 01, 2013, 05:27:42 AM »

This amp uses 4 TV sweep tubes.  I am quite sure it can be modified to work on 160M by someone who knows what he is doing, but I doubt if it can be made to work on 6M.  

In the late 1970's I built a similar sweep tube amp with 4 each 6KD6 sweep tubes out of the ARRL Handbook.  I was only able to get it to work on 160-20M.  On those bands it would give around 600W output.  I have no idea how "clean" it was.

There is a lot of stray capacitance in those 4 sweep tubes that MAY make it impossible (or nearly so) to modify it for 6M

Dick  AD4U
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