On 5/1/06, Rick Brashear <[EMAIL PROTECTED]> wrote:
Does anyone have a nice hefty dummy load capable of 2kw - 3kw they would like to sell or trade? I need something capable of handling a 1000 watt carrier for more than a few seconds.
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
