>I have the opportunity to purchase a Henry 3K-A. The following grid and
>plate currents and power out were measured. Can anyone tell me if these are
>"normal" or nominal and if the tubes (3-500Z's) appear OK based on this
>info? Thanks for any info!
? The 3K-A is the only Ham amplifier I know of with a 2500W CCS anode
supply. Normal full throttle is c. 2k out. It is also a good performer
on a 20a, 120v outlet -- provided one tunes the beast up with a keyer
sending fast dits instead of AØ/NØN. There are some circuit improvements
that are not needed for those who have a free supply of 3-500s and drive
it with an older transceiver (TS-830S, et cetera).
>73, Mike-K6QD
> GRID CURRENT PLATE CURRENT POWER OUT
>
>40 meters CW 260 800 1000+
>
> SSB 200 800 1200+
>
>20 meters CW 250 800 860
>
> SSB 210 850 1000+
>
>15 meters CW 260 810 800+
>
> SSB 220 800 1100+
>
>10 meters CW 250 820 800+
>
> SSB 260 900 1000+
>
>
>_______________________________________________
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>Amps@contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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