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Re: [Amps] amp reading

To: Amplifier Mailing List <amps@contesting.com>
Subject: Re: [Amps] amp reading
From: Alek Petkovic <vk6apk@bigpond.com>
Date: Sat, 24 Jan 2015 15:26:44 +0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I use 5 Watt wire wound resistors of 0.1 and 0.22 Ohms and series/parallel a heap of them up to get the desired resistance/power dissipation level.

You gotta overkill on the power rating because you don't want them getting hot and you often can't mount them in a cooling air stream.

73, Alek.
VK6APK

On 24/01/2015 7:17 AM, ki7m@comcast.net wrote:
This discussion of single and multi-tube amps has been interesting. I learned a whole lot 
by finding www.somis.org (AG6K Richard Measures site including kits for suppressors on 
various amps) and www.w8ji.com Charles T. Rauch Jr. sites (what a station!). I put one of 
Rich's suppressor kits in my Dentron MLA-2500 "basket case" amp trying to 
improve it. I'm not proud of my 'construction' technique (read the whole instructions 
before starting) but I'm sure it helped. One of the things I wonder about is how you add 
a resistor to the filament lead since it seems it is going to have to be about 0.2/0.4 
ohms or so at high current. Maybe a wire but that can add inductance so I was never clear 
on that. I suspect my Dentron could use that mod but I haven't done it yet.
Terry
KI7M
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--
From sunny Binningup, Western Australia.

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