[Boatanchors] Trying to identify the origination of a real nice heavy PA ...

[D C _Mac_ Macdonald]

Yep!

The numbers in the designation indicate plate power dissipation capabilities!

73 de Mac, K2GKK/5 in OKC, OK

Sent from my iPhone

On Dec 30, 2016, at 23:24, "COURYHOUSE at aol.com<mailto:COURYHOUSE at aol.com>" <COURYHOUSE at aol.com<mailto:COURYHOUSE at aol.com>> wrote:

Hmmm... thought    the  4cx250  was higher plate  dissipation   and  some other parameters  differnt...

Ed#  www.smecc.org<http://www.smecc.org>

In a message dated 12/30/2016 8:11:18 P.M. US Mountain Standard Time, k2gkk at hotmail.com<mailto:k2gkk at hotmail.com> writes:
The 4X150G WAS a glass envelope tube that was replaced/superseded by the 4CX250().


* * * * * * * * * * *
* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* k2gkk hotmail com *
* Oklahoma City, OK *
* USAF & FAA (Ret.) *
* * * * * * * * * * *



________________________________
From: Boatanchors <boatanchors-bounces at mailman.qth.net<mailto:boatanchors-bounces at mailman.qth.net>> on behalf of Rob Atkinson <ranchorobbo at gmail.com<mailto:ranchorobbo at gmail.com>>
Sent: Friday, December 30, 2016 16:52
To: Bill Mellema
Cc: BoatAnchors QTH; Brian Harrison
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<mailto: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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