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Re: [Amps] 3-1000 Amplifiers

To: Carl <km1h@jeremy.mv.com>, Rob Atkinson <ranchorobbo@gmail.com>
Subject: Re: [Amps] 3-1000 Amplifiers
From: aborg <a_borg@yahoo.com>
Date: Tue, 10 May 2011 08:04:52 -0700 (PDT)
List-post: <amps@contesting.com">mailto:amps@contesting.com>
7.5 volts 21 amps same as the 4-1000A.


Mike-KK4MS
a_borg@yahoo.com


--- On Tue, 5/10/11, Rob Atkinson <ranchorobbo@gmail.com> wrote:

> From: Rob Atkinson <ranchorobbo@gmail.com>
> Subject: Re: [Amps] 3-1000 Amplifiers
> To: "Carl" <km1h@jeremy.mv.com>
> Cc: amps@contesting.com
> Date: Tuesday, May 10, 2011, 10:43 AM
> I wonder what would happen if a
> triode connected 4-1000A were used in
> that BTI amp?   Off-hand I don't know what
> the filament v. is for the
> 3x1.
> 
> Rob
> K5UJ
> 
> On Tue, May 10, 2011 at 7:58 AM, Carl <km1h@jeremy.mv.com>
> wrote:
> > In the early 90's I contracted to design one for ITT
> that covered 4-20MHz
> > with 6 preset frequencies and was to be used in
> Europe. About 50 were built
> > but after the prototype shakedown I never heard any
> more.
> >
> > Carl
> > KM1H
> >
> >
> > ----- Original Message ----- From: "Rob Atkinson"
> <ranchorobbo@gmail.com>
> > To: <amps@contesting.com>
> > Sent: Monday, May 09, 2011 8:00 PM
> > Subject: Re: [Amps] 3-1000 Amplifiers
> >
> >
> >> Dick,
> >>
> >> That BTI amp is the only ham amp I know of.
>  There were some
> >> commercial amps made that used the 3-1000 but I
> forget who made
> >> them--Harris maybe.
> >>
> >> This is one case where if you come across one of
> those BTIs, the tube
> >> may very well be worth more than the rest of the
> amp.  The last time I
> >> checked, RF Parts wanted $1200 for a 3x1.
> >>
> >> 73
> >> Rob
> >> K5UJ
> >>
> >> A local found a BTI LK-2000 in an SK's barn
> (really, a true "barn
> >> find"). That got me wondering
> >> how many Ham Amps were available (commercial not
> HB) that used the
> >> 3-1000. I guess that
> >> the proliferation of 4-1000's may have limited the
> 3-1000 appeal.
> >> The LK-2000 I saw was only the second one I have
> seen in 55 years of
> >> Hamming.
> >>
> >> Does anyone know of any other commercial Ham Amps
> that used the 3-1000 ?
> >>
> >> 73, Dick, W1KSZ
> >> _______________________________________________
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> >> Amps@contesting.com
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> >>
> >>
> >> -----
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> >
> >
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