Something is wrong with the numbers. 3500 V at 500 mA is 1750 watts DC
input. If you were measuring 1500 watts RF output, that would be an
efficiency of about 86%, which is impossible with a class AB linear
and highly unlikely even if operated class C.
I would recheck the meter calibration before buying.
73, Bill W6WRT
------------ ORIGINAL MESSAGE ------------(may be snipped)
On Thu, 8 Sep 2016 18:43:45 +0000, you wrote:
>I'm interested in buying a home built amp using two 3-1000 (or 4-1000 i dont
>remember which). I had the opportunity to try it. HV is at 3500 volt under
>load, and the Ip meter goes to 1 amp, I drove it to about 500 ma
>
>It displayed over 1500 watts on a bird 4410 meter into a tri band antenna with
>no surprises. it just sat there looking good. This thing appears to be well
>built. it covers 10 thru 80 meters
>
>The power supply (full wave with two big oil caps) with blower is in a
>separate cabinet under the RF deck. Its similar to the older Henry amps. And
>very quiet. The only thing I wasn't ready for is the amount of heat it gave
>off WHEW! The guy is asking $900
>
>What do you all think?
>
>Arnie
>
>Kd6cz
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