[Heathkit] HG-10B/DX-60 Keying question

[KA4INM]

On 06/27/13 20:44, rbethman wrote:

> The *best* test for a tube is to place another one in the actual circuit.

> It may indeed take two or three before the circuit operates properly.

> This has been the way that even old military radio technicians have done
> for decades.

> Give it a shot.

   This is called "test by substitution" and it can not be denied.
Many TV repairmen had only this as their technical took kit.
If it was something "under the chassis" a guy would come by one evening 
a month and fix them for $20 each.  (with 5 or 10 lined up on the bench)
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.