On 6/28/20 11:43 AM, n0tt1@juno.com wrote:
Hello everyone,
I recently aquired a "commercial" dummy load that I'm sure will handle
more than 2kw.
There are 12, 600-Ohm resistors in parallel that measure 50-Ohms with a
Ohmmeter.
The resistors look like frosted glass tubes with metal end caps. They
measure 9.5" in length
and 1" diameter. The number stamped on the ends is E9935R and their
vintage is late 60's. A Google search for that exact number turned up
nothing.
Question: Does anyone know the power rating of these resistors and
what type of resistor are they?
They might be non-inductive power resistors from Carborundum corp (now
part of Sandvik, as I recall). I've got a bunch of them, although mine
are grey or brown.
They could also be a thin film resistor deposited on a ceramic
substrate. Same idea - lots of area for cooling.
I have photos.
73,
Charlie, N0TT
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