[Elecraft] Dummy loads for dummies

[Clay Autery]

Makes me curious about designing with these TO-220 resistors in the 1000
Ohm size of appropriate power rating...  Parallel 20 of them like folks
do on the axials that they put in the can type dummy loads with oil.

Options:

1) 20 in parallel on a finned copper or bare aluminum sink of sufficient
size and then entire assembly in a oil wetted container.
2) Same, but only the finned side of the finned/pinned heat exchanger in
a coolant bath.

I'd like to have a rugged, high power, key down load built from easily
obtainable and replaceable parts.

______________________
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 12/27/2016 5:52 PM, Mel Farrer via Elecraft wrote:
> One thing I might also add in.  I use the Film TO-220 style non-inductive resistors with a heat sink in the 200 ohm 1% configuration to test 4:1 baluns at 100 watt level to confirm non saturation on the small QRP baluns I make.
> Mel, K6KBE
>
>