[Amps] Who was looking for the 20kw Dummy load?

Mike McCarthy, W1NR w1nr at eecorp.com
Sun Aug 15 16:35:25 EDT 2004


I missed your original post and don't have your email, but a buddy of
mine has
a Bird 2.5KW continuous air cooled unit for sale that might work if
submerged in water or
oil.  It has the EIA fitting and a couple of adapters, including one for
"N" connectors.  Contact me directly if interested...
w1nr at earthlink.net.

Mike, W1NR


Robin Szemeti wrote:
>
> Hi,
>
> I need to use / beg / borrow / steal a decent dummy load to test this
> amplifier out .. running into its intended load I've had a couple of
DC
> flashovers *somewhere* and I'd like to run the amp up into a dummy
load, just
> to prove it to myself  ...
>
> anyway ... has anyone got, for loan or whatever, a 50 ohm, 50mhz dummy
load,
> capable of standing around 20kw CW for at least 5 minutes, water
cooling is
> OK, we can do that.  Ideally it should be 3 1/8" EIA flange,  but I'm
> prepared to get busy on the lathe to make up a fitting if I have to.
>
> Actually, Id even settle for a gigantic 50ohm resistor that I could
watercool
> myself, not averse to a bit of lathe work to make a water jacket for
it. Are
> normal carbon tubular ceramic resistors OK in a water jacket or do you
need
> 'special' ones btw?
>
> I'm UK based ...




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