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Re: [Amps] Dummy Load

To: <amps@contesting.com>
Subject: Re: [Amps] Dummy Load
From: "Mark Marsden" <mm@plextek.co.uk>
Date: Thu, 26 May 2005 11:25:57 +0100
List-post: <mailto:amps@contesting.com>
 
Hi Bert, Ian, David, et al 

I had a look at the datasheet, 3uH is unfortunate.   

Other resistors, for a 30dB T then, are Vishay parts, 47R 500W (FEC 306-8043), 
then 3R3 to deck, three 50W 10R in parallel (FEC 306-6885), and a 20W 47R (FEC 
306-6710) to the output. Then a lab 10dB attenuator.  

That costs £(36.92 + 3 x 3.09 + 2.24) = £48.43, plus junk box heatsink fan & 
connectors. Another way, about the same cost, is a MFJ-250X and a Breune 
coupler.

73 Mark G4AXX 
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