[Boatanchors] Is 4657 same animal as the 8072?

[Mack Rogers]

Yessir, the Motorola 4657 is the same as the RCA 8072.

http://www.hamanuals.com/S1/Common/TNs/TN14.pdf


N4VGB
Mack Rogers




--- On Sun, 10/18/09, Sandy <ebjr37 at charter.net> wrote:

> From: Sandy <ebjr37 at charter.net>
> Subject: [Boatanchors] Is 4657 same animal as the 8072?
> To: "Glowbugs reflector" <glowbugs at piobaire.mines.uidaho.edu>, boatanchors at mailman.qth.net
> Date: Sunday, October 18, 2009, 5:42 PM
> Some of you land mobile radio people
> may be able to tell me if.......a 
> Motorola 4657 planar conduction cooled beam power tube is
> equivelent to the 
> RCA 8072 tube?
> 
> I have several of these NOS and curious to know.
> 
> All indications are they are the same, but I'd like to hear
> it from somebody 
> that has dealt with them before.
> 
> 73,
> 
> Sandy W5TVW
> 
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