[Elecraft] OT: heat sinking resistors

[Phil & Debbie Salas]

"I just received a few Ohmite thick film power resistors for an attenuator I'm making, 
rated 20 watts. They are 15mm x 10mm x 3mm. Obviously they have to be heat-sunk 
(heat-sinked?) if they are going to dissipate that much power."

FYI - Both Ohmite and Caddock make versions of these resistors that have screw holes for mounting.  The lower power parts (15-20 watts) are pretty good thru 2-meters.  However, the higher power versions (especially the 100-watt versions) can start to look bad at 50 MHz due to the large package capacitance-to-ground.

Phil - AD5X