Tung-Sol 6SN7GT / GTA / GTB datasheets + 6J5

[legendre]

I was digging though some docs tonight, and came across these Tung-Sol datasheets for 6SN7GT, 6SN7GTA and 6SN7GTB. I'd not seen these anywhere else, and there are some differences between the various revisions, so I made some nice scans and posted them.

I'm also a fan of the 6J5 (1/2 of 6SN7), and the data was close by in the set.. so I did that as well.

Here's a sample image from the 6J5 set - in case you want to play with load lines.. ;-)

The entire group is here. They're all single .PNG files, so you can use them as you like: Tubg-Sol 6SN7GT/A/B data

 

[legendre]

If you found these to be of any use, please post a 'thanks' or some note, to keep the thread bumped, such that others have a chance to find it.

FYI - I do have a fairly complete set of Tung-Sol docs (in the adjustable binders) and would be willing to make large, high-quality scans of some other common audio types upon request. So if you'd like to have them, feel free to ask. And again, I don't know of another source for large, clear scans of these docs, particularly the curve charts. But if they do exist, please let me know so I don't waste my time on it! 🙂

(Data sheets taken from volumes similar to these, for reference)

 

[HollowState]

And again, I don't know of another source for large, clear scans of these docs, particularly the curve charts. But if they do exist, please let me know so I don't waste my time on it! 🙂

It's certainly no waist of time if someone needs them. But virtually every major manufacture of tubes had large binders of data sheets. They're pretty scarce today, but can be found occasionally on eBay. I don't have this particular nice set, but I do have data sheet binders from GE, Sylvania, Eimac, Machlett and the full RCA HB series.

 

[famousmockingbird]

Nice looking curves!

Thanks for the scans🙂

 

[legendre]

It's certainly no waste of time if someone needs them.

That's the point - There are scans of of several vintage tube manuals on the web, but in my estimation, there is little focus on the most common audio types, in terms of providing high-quality curve sets that can be closely studied, printed & used for developing load lines and so forth.

But virtually every major manufacture of tubes had large binders of data sheets. They're pretty scarce today, but can be found occasionally on eBay. I don't have this particular nice set, but I do have data sheet binders from GE, Sylvania, Eimac, Machlett and the full RCA HB series.

Well, that's the whole point - these docs were only held by service shops and so on, back in the day. Today they are rare, in relative terms, so it's more or less incumbent upon us to provide some better images while we still can. My sense is that there are far more tube enthusiasts today, than there were tube-era electronic service shops back in that era.

 

[legendre]

By popular demand, here's the fairly complete 12AU7/A 12AT7 12AV7/A 12AX7 12AZ7 family: Tung-Sol 12A_7 series

😉

A shot of the 12AT7 curves.. from 1947, a truly rare and excellent vintage. 🙂

 

[RonSSNova]

Too bad we can't get the smell of those old manuals in PDF form.

I had that set and gave them to my good friend Matt K.

Thanks for posting those.

Ron

 

[jazbo8]

Thanks for sharing the Tung-Sol datasheets from your library, but unless I'm mistaken, Frank's Eletron Tube Data Sheet already has all of them in PDF form.

 

[legendre]

Thanks for sharing the Tung-Sol datasheets from your library, but unless I'm mistaken, Frank's Eletron Tube Data Sheet already has all of them in PDF form.

Hey jaz,

Yup, you're right.. pretty much everything I posted is available, though the Frank's scans. What I've seen there aren't quite as clean as they might be, but in reality, I don't foresee much difference for even a fussy tech like my damnself - fact is, the data is there in a usable format.

Thanks for saving me the further effort. The stuff I posted is still nice quality, so maybe someone finds it useful.

BTW - I only have Vol I and Vol II of the Tung-Sol set.. which seems quite comprehensive, at least so far as small-signal & receivingl types are concerned. Does anyone know which models populated Vol III? Was it mostly Television stuff, with picture tubes and so on - or were there a bunch of transmitting tubes as well? I don't see much missing from the volumes that I have.. again, so far as anything I'd ever be concerned with.