Kevin,
Original spec sheet:
http://w4dex.com/manuals/23cm/hi-spec/
Over 20 years ago I initially used 2C39s in the amp but later changed to
7289. I got all the parts necessary for water cooling but never
completed the project. I'm still use air cooling with an old microwave
oven blower. Lot's of noise but amp is stable and maintenance free.
73,
Dex
kevinemtid@sbcglobal.net wrote:
> Hi Folks,
>
> I am still working on my 1296 setup. The antennas are almost done and I still
> have to build the h-frame. So hopefully I can be on 1296 for the June
> contest. Anyway, my question is this, Does anyone have any experience with
> the HI-SPEC 23G2B Cavity Amp? I obtained one and I am looking to get it
> going. What model Tubes does it use? I was given 14 tubes with the amp, but I
> don't see any #'s on them. Mind you all of the tubes have been setup for
> water cooling so they have a copper hood on them. Any help would be
> appreciated. My google search proved little help.
>
> Thanks for your help!
>
> 73,
>
> Kevin NZ1I
> Mystic, CT
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>
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