Doubling the HV will demand changing of many capacitors and the Pi
net parts. But at 1200 V a pair of GI7B will put out 400 W, three -
600 W. The original Pi net will do the work. 6KG6/EL519/6P45S is also
good decision.
By the way, I'm looking for an old swep tubes PA too.
73, Val LZ1VB
> Dunno how feasible a voltage doubler and a couple of GI7B tubes
would be.
> The tubes are cheap and it would be an interesting project.
>
> 73 and good luck,
> Alek
> VK6APK
>
> >I've just gotten this nearly mint and hardly used FL2000 for a
song. The
> >original 6KD6's are nearly new but I would like to keep them for my
great
> >FT-501 with CW filter and very tired finals. Is there some type of
> >conversion the FL2000 can undergo with another type of tube(s)? It
would
> >be a pity just to gut it because I stole it's tubes! Am I barking
up the
> >wrong tree? Maybe I should retube the FT-501 and use the FL2000??
> >The FL2000's power supply gives 1200 volts dc. and I can do
moderate
> >circuit modifications to accomadate one or more tubes. Maybe put a
doubler
> >circuit in the H.V. bringing it up to 2400 v. then I could put in
572's or
> >something else?
> >Another question: Are the four original 6KD6's in the FL2000
matched ?
> >73's all
> >VE2FAR
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