[Elecraft] Fw: Don't have a 50W dummy load
Charlie T, K3ICH
pincon at erols.com
Wed Mar 25 23:13:33 EDT 2015
Yes, but the inductances are all in parallel. I built a decent dummy load
out of 24, 1200 Ohm, 10 watt wire wound resistors all in parallel between
two squares of fiberglass PC board. The SWR was only about 1.2:1 on 15
Meters and about 1.5:1 on 10 meters. Admittedly, not a perfect load, but
certainly adequate for the low bands just to soak up some RF.
73, Charlie k3ICH
>
> If you're going to use the paralleled metal film resistor construction
> method, be sure to keep the resistor leads short and spaced them from each
> other. Lead inductance will start to become a factor on 6 m and up. I
> built mine with 40 2K 2W resistors and it works find at 100W if used
> intermittently. It's air cooled. Don't know how much putting it in oil
> would improve the dissipation.
More information about the Elecraft
mailing list