Thanks for feedback. Ordered wire to make a heavy duty load.
The Wesson Oil dummy load I have made sitting inside another can with water just wasn’t taking the duty cycle.
It did get hot enough to deep fry food.
73’s
N3AGE
Elmer
depending on the power You intend to use, I recomend homebrew Dummy Loads, indeed attenuators only up to a power of 100 Watt. Wovings of bifilar wound fibre glass filaments
and Nickel Wire (Manganin or Konstantan) are recomended in HF-Books before WW2 for LF and MF. Add a power meter at the low power output of the attenuator. At Ham Radio in Friedrichshafen I acqured two DL 60 Ohm /100 W dry and a big boat anchor of 60 Ohm/1,3
kW, wet , both from Rohde und Schwarz. The power dissipation is for measurement purpose (cw 24/24h) for ham radio measurements the power is larger. As Power meter I use one of Sat-Technik Ulf Schneider, in see Internet
www.sat-schneider.de . Of course I have put some attenuators of minor power at the output of the Dummy Loads. On LF/HF-frequencies I prefer stable test set ups, with 50 Ohm
or 60 Ohm resistance in matching and measuring. Please dont waste time in ham construction, I remember plenty of them for Dummy Loads in HF. More upon request.
55, Hans-Albrecht DK 8 ND
Saw dummy load conversation and I too am wrestling with .. what about Nichrome C wire, 26 gauge 19 feet to come close to 50 ohms? Resistance change due to temperature should
be low. Thinking of mounting outside to mange heat.
Elmer
N3AGE
Sent from my iPhone
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