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Old 12th Jun 2021, 5:23 pm   #4
G4_Pete
Hexode
 
Join Date: Feb 2014
Location: Southampton, Hampshire, UK.
Posts: 419
Default Re: PW Jan 1983 50 Ohm Dummy load

I guess the test for that would be to try it on an impedance analyser with different sand depths but it is really messy getting the sand in and out plus if anyone has built one of these they will know how difficult it is to persuade the resistor assembly to sink in the sand so I think I will just leave it as is. Plus it wont be going above the 80 meter band.

I recall taking my original one to a club construction evening in the 1080's I pulled it apart to show the internals and was still trying to shake the tin to get the resistors back in as people were leaving not to mention sand all over the place!

I appreciate the sand is a short term sink and there are far better ways with specific RF resistors available now but this was a low value resistor specified in the manufactures transmitter set up and once I had set off down the construction path I was reluctant to turn back or consider other technical set up options.
Pete
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