[Boatanchors] OT: Ignorance :)) Yeah, sure

[rbethman]

Somebody is going to have to referee this.

The 1948 Radio Amateur's Handbook - Twenty-Fifth Edition, pg. 605 gives 
the specs.  It references base diagram 5AZ also.  It INDEED shows the 
suppressor grid tied internally to the cathode.

It would appear that the ARRL has published conflicting information.

My RCA tube manual from 1957 agrees with the above, and so does my '64 
GE Electronics, "Essential Characteristics".

I'm confused!

Bob - N0DGN




On 3/22/2011 2:55 PM, mac wrote:
> The 1625 GG linear mod was to ground the beam forming plates, not the
> "suppressor" grid..  The 1625 does not have a suppressor grid although
> the universally referenced base diagram (5AZ)  appears to show one.
> (Ditto the base diagrams for the 6L6, 6V6, 813 and others.)  The only
> reference I have that shows these base diagrams correctly is my 1949
> Radio Handbook (11th edition).
>
> Dennis D. W7QHO
> Glendale, CA