Maximum grid current as stated in the HENRY manual.
"6x as much feedback-C as an 8877" OK, my proof is in performance. All the
quoted theory can't take away from what really works.
As far as HENRY producing amps with 6 V on the filaments of 3-500 tubes,
anything is possible over 36 years of amplifier production.
Yes, mistakes can be made. Who amongst us hasn't made any?
With that kind of longevity (the longest in the Ham market for amps, since
1962), I'd say their mistakes are much fewer than what they do right.
73, Dan Magro W7RF, (member SCDXC, SCCC)
Rugged, Reliable Henry HF Amps are "Instant on" for RF Power now!
DXers/Contesters/Ragchewers get your HENRY from RADIODAN for LESS!
***Subscribe to the HENRY reflector at www.qth.net <http://www.qth.net>
***
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> -----Original Message-----
> From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
> Behalf Of Rich Measures
> Sent: Thursday, October 08, 1998 2:03 AM
> To: [AMPS] submissions
> Subject: RE: [AMPS] What Tube for Home brew
>
>
>
> >......
> >As for the 3CX1200A7 having a problem in some other brand of
> amplifier, OK,
> >I'll take your word for it. Let's put it as more the
> manufacturer than the
> >tube.
> >
> >As for HENRY using this tube in their HF amps, it is an
> excellent performer
> >and VERY stable!
> >
> The 3CX1200A7 has approx. 6x as much feedback-C as an 8877.
>
> >My HENRY 3K Classic X MKII (using a 3CX1200A7) will put out into a 50 ohm
> >load 2500 watts on 10M with drive that still doesn't push grid current to
> >tube max ratings.
>
> There is no maximum grid current rating for the 3CX1200A7.
>
> >Hmmmm, with these "extra losses at the high end of the HF
> spectrum" I would
> >say it must be "properly tamed" eh?
> >
> no
>
> >As if there is some shame in stating facts about HENRY amps. .....
>
> Henry has produced 3-500Z amplifiers the use c. 6v on the filaments.
>
>
> Rich...
>
> R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>
>
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>
>
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