[Boatanchors] Is 4657 same animal as the 8072?

[Glen Zook]

They are just RCA 8072 tubes with the Motorola part number on them.

Glen, K9STH

Website:  http://k9sth.com


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

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.