[Amps] Dummy Load "Oil"

[Manfred Mornhinweg]

Hi Dick,

> Since the Bird Silicone Oil is a tad pricey ($142/gal), can anyone
> recommend a substitute for re-filling a Bird Dummy Load ?

When I built my kilowatt-level dummy load, roughly ten years ago, in the 
style of the venerable Heathkit CanTenna, I filled it with Shell Thermia 
oil. The Shell distributor in my area would only sell at least one 
bucket (five gallons), I convinced a few other club members that they 
too needed large dummy loads, and we joined efforts to buy a bucket of 
that oil. The bucket cost something like 50 dollars, if my memory is not 
too leaky.

I still have this dummy load, and it's still working perfectly. No 
degradation of the oil, corrosion of the resistor or can, or any other 
problem has been noticed.

Manfred.

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