[Boatanchors] VHF linear amp?

[Ron VE8RT]

Hi Mac,

   here's a flash back to your past.  I work for Buffalo Airways, we're
still using C46's, L188's, C47's, and a couple of years ago retired
(maybe temporarily as they're fitted for fire retardent bombing)
C-54's.  The boss has a N3N on floats that he putters around the
neighbourhood in, and a Norseman on floats for touring around with
friends..

   Shipping heavy items like the power supply parts might be expensive,
now that the snow has melted I could take check outdoor storage spots
for power supply parts.

   But after I'm done the CL215, they want it soon to start training
with it.

       Ron VE8RT

On Wed, 27 May 2020 21:18:18 +0000
D C _Mac_ Macdonald <k2gkk at hotmail.com> wrote:

> FAA and USAF had linear amps (for AM) using ceramic tubes.  They can be modified to work on 2m or 200-400+ MHz.  They can be found as surplus although a bit rare.
> 
> 73 de Mac, K2GKK/5
> Since 30 Nov 1953
> Oklahoma City, OK
> USAF, Retired ('61-'81)
> FAA, Retired ('94-'10)
> 
> 
> ________________________________
> From: boatanchors-bounces at mailman.qth.net <boatanchors-bounces at mailman.qth.net> on behalf of Gary Peterson <kzerocx at rap.midco.net>
> Sent: Wednesday, May 27, 2020 12:45
> To: boatanchors at mailman.qth.net <boatanchors at mailman.qth.net>
> Subject: [Boatanchors] VHF linear amp?
> 
> Ron,
> 
> The Johnson Viking 6 & 2 Thunderbolt used 4CX250Bs.  These are fairly scarce amplifiers.  I owned one, briefly.  A friend pestered me, incessantly, until I sold it to him.
> 
> There may have been other commercially made 4CX250B amps for amateur use.  I just can’t think of any.  I have plenty of FM broadcast pulls, sockets, chimneys, etc.  I used to replace the driver tubes, annually, even if they were still providing full drive to the PA.  You could always hombrew an amp.
> 
> Gary
> KzeroCX
> 
> I've had a long desire to QRO a bit on
> VHF 6, 2, or even UHF 70cm, and was wondering what type of boatanchor
> amplifiers that use these tubes I might find? Ron VE8RT
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-- 
Ron VE8RT <ve8rt at yknwt.ca>