[AMRadio] Dummy Load


Rick Brashear rickbras at airmail.net
Tue May 2 10:40:37 EDT 2006


Thanks Todd and all who responded.  Is this a great list or what!

73,
Rick/K5IZ

>
> I'd suggest checking with the guys who know of, or are parting out
> some of the big old AM transmitters. Gates and probably others used to
> have a built-in dummy load consisting of a large board or panel
> covered with hefty non-inductive resistors. Even a 1KW version would
> probably work alright for 2-3KW if you added some forced air cooling
> by fan - provided you don't plan on leaving it keyed up for a long
> period of time. I have one here that is rebuilt into a metal
> enclosure, and actually managed to get it warm for the first time this
> past weekend when W1UJR was over at my place helping to get things in
> order. We were dumping a KW-input rig (750w or so) into it for
> extended periods, and it handled it fine with no help from a fan.
>
> de Todd/'Boomer'  KA1KAQ
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