I suppose I lucked out with my Glo-bar resistors. They were given to me in the mid 80's along with a pile of other stuff by a retired medical doctor no more than a couple of weeks before his death. He had sold his "good stuff" (SSB transceiver, etc), and let me and another ham have his "junk" for hauling away. He had bought the resistors in 1947 as military surplus, new in the box along with the receipt, and apparently kept them on hand all those years but never got round to doing anything with them. I already had plenty of clamps to hold the ends - just like cartridge fuses. I assembled them in a circle, with the resistors mounted vertically and wired in parallel a few years ago. Mine seem to be much better than 10%. Each one measures 50 ohms spot-on. The total resistance is 50 ohms exactly. But I notice that after letting them run hot for several minutes the ohmmeter reads a couple of ohms high or low (don't remember which, but I think high), but the SWR meter still reads 1:1. When I got my Gates broadcast transmitter, I loaded it up to 1 kw carrier output and let it run into the load for several hours. The resistors made a nice room heater, but showed no signs of overheating. Looks like at to-day's prices, that brand new, that load would cost pretty close to a dollar per watt @ 1800 watts! I don't recall how much the receipt said the Doctor paid for them originally.

Don k4kyv
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