[Amps] Gettering - ETAL

[Ron Youvan]

richard N7RC courtway wrote:

> Lots of information around concerning the real need to HI-Pot  /
> Getter glass tubes - especially concerning the popular 3-500 series.

> But not so much concerning the same need for Ceramic / External Anode
> tubes.  How come ??  Do they actually need the same attention - if
> not - why not ??

   You can't run the finned plate of an air cooled plate orange or red, so the MFGs spot weld 
gettering washers and disks to the leads between the base and under side the elements.
   (operating the plate red would damage the metal to ceramic seal)
-- 
    Ron  KA4INM -    Ron  KA4INM - Did you know ...
                     ... that no-one ever reads these things?