I¡¯m not certain, asi have never hooked it up to a water source. It does carry a rating for dry use, so my guess is that it has a jacket around the resistor that doesn¡¯t come into contact with the resistor. ?I should look it up by model number and see what¡¯s what.
I know that I have run it at legal limit for a few seconds to check power out of amplifiers and it is still about 50.6 ohms or similar. ?I rarely use it now because my tuner doesn¡¯t have a straight-through connection for it.
As far as my bench goes, I have a much smaller 150W CCS Bird dry load that I picked up at NEARfest a few years ago, which I use for testing exciters.
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
On Thu, Mar 7, 2024 at 4:07 PM, Richard Knoppow <
1oldlens1@...> wrote:
Does it take flowing water or only have a reservoir? Water cooled
tubes needed distilled water or better. Very pure water is a good
insulator. If this needs distilled water you could not just hook it up
to a garden hose. There is also the rubbish in the water that gets
deposited on anything, like the crust in a kettle.
On 3/7/2024 12:31 PM, Steve Wedge, W1ES/4 via groups.io wrote:
> I have a water-cooled Bird load that can take a kW for long enough to
> measure, when it¡¯s dry. I¡¯ve never run it water-cooled and have tested
> many L-4/L-7/LK-500/SB-220 type amps over the years. If I ran it
> water-cooled, it could take 2500W, CCS.
>
> Steve Wedge, W1ES/4
>
>
--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998
