[Boatanchors] Trying to identify the origination of a real nice heavy PA tuning deck - follow up comment

Bill Mellema n3wm at yahoo.com
Fri Dec 30 20:30:13 EST 2016


Hi Rob,
The two 4CX150 sockets are on the homebrew chassis next to the PA tuning assembly. I will post pictures as soon as I figure out how to upload them to a site so everyone can view them.
If anyone has tips on where I can upload pictures for the gang to download I would appreciate it..
Many Thanks,
Bill N3WM

      From: Rob Atkinson <ranchorobbo at gmail.com>
 To: Bill Mellema <n3wm at yahoo.com> 
Cc: BoatAnchors QTH <boatanchors at mailman.qth.net>; Nick England <navy.radio at gmail.com>; Brian Harrison <briankn4r at gmail.com>; "wa5cab at cs.com" <wa5cab at cs.com>
 Sent: Friday, December 30, 2016 5:52 PM
 Subject: Re: [Boatanchors] Trying to identify the origination of a real nice heavy PA tuning deck - follow up comment
   
On 12/30/16, Bill Mellema via Boatanchors <boatanchors at mailman.qth.net> wrote:
> I want to add this assembly is probably dated back to the late 40's or
> 50's...just a guess..

I don't think ceramic tubes were around in the late '40s or early
'50s.  Back then the exposed anode tubes were glass.


>  Guys,
> I recently found a partially built homebrew 2X 4CX150 ham PA amplifier. The
> PA tuning is a separate section that can be removed with a few screws. It is
> built like a tank and can easily handle 2KW

With total plate dissipation of 300 w. the hardware might handle that
power but the two 4cx150s will probably not even give 2 KW input.

73

Rob
K5UJ


   


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