[Boatanchors] 12G8 - anyone gave the full tube specs?

qrv at kd4e.com qrv at kd4e.com
Sun Aug 25 16:00:31 EDT 2013


Thanks!

I put the two-part schematic for the Gonset Super-ceiver here:
http://kd4e.com/kd4e-docs/manuals/

That shows how the 12AT7 is currently being used.

If the triodes are used for separate circuit purposes, e.g. one side
for a BFO and the other for an audio amp, does it matter if they are
"dissimilar"?

I'm not educated as to multi-section tube engineering so I don't
understand the value-added of "similar" unless they are somehow
working in tandem in a common circuit.

Help?

> It's not the same, or similar to the 12AT7.  The tube consists of two
> dissimilar triodes.  It is listed in the GE Essential Characteristics
> 1973
> <http://www.nj7p.info/Human_Valid.php?m=Common/Manuals/PDFs/Tubes/ge_essential_characteristics.pdf>.
> The manual can be downloaded at
> http://www.nj7p.info/Common/Manuals/Tube_Manuals.php (Large pdf file
> over 10Mb).
>
> Hope this helps.
>
> Jim N5MSJ
>



-- 

Thanks! & 73, KD4E.com

David Colburn - Nevils, Georgia USA

Search with: duckduckgo.com

Android for Hams: groups.yahoo.com/group/hamdroid
Creative Tech: groups.yahoo.com/group/ham-macguyver
Raspi Alternative: groups.yahoo.com/group/beagleboneblack/

Restored to design-spec at Heaven's gate 1Cor15:22


More information about the Boatanchors mailing list