Looking for 6SN7 SE schematics...

[oswald1963]

Hi There,

I'm looking for a simple 6SN7 SE schematic like "Jeremy Fix" amp. There was huge hype around that. Where can I find old US television schematics with this or 6BX7 tube where used to it many times? Looking to keep it very simple - dual monoblock or not -, so if you can recommend me a schematic that would be great!

Thank you,
Cheers

 

[bluerooster]

mabe something akin to this?

 

[ChrisABC]

Here's some:
http://www.asahi-net.or.jp/~jc3t-sum/a6sn7/6SN7-GT.jpg

Radio-Craft Oct 1946, p 36
http://www.americanradiohistory.com/Archive-Radio-Craft/1940s/Radio-Craft-1946-10.pdf

https://web.archive.org/web/20160315113053/http://www.webster-chicago.com/288sch.jpg

http://web.tiscali.it/giltubes/Ampli.gif

https://web.archive.org/web/20060430012114/http://www.firebottle.com/ampage/schems/moonlight.gif

http://www.reocities.com/bobdanielak/se6sn7.gif

there was an article in AudioExpress.com
1/02 p24 Beginner's pp or se amp
with 6SN7 & Hammond 125E
by Larry Lisle

one more
http://www.geocities.jp/iios9402/img082_3.gif

 

[oswald1963]

Thank you!

 

[Lingwendil]

Here's some:

The majority of those circuits are push pull...

In my signature there's a link to my 6SN7 push pull design as well.

Interestingly the majority of the 6SN7 power amps you see are in fact push pull, as it's a bit more usable power than SE, but if you search around for headphone amps you'll find some nice SE designs using the 6SN7, you just need to see through the snake oil in some of the designs out there.

I see so many parallel SE builds that would be better if just built as a nice push pull design, as these are fantastic tubes when built up this way.

 

[ChrisABC]

6sn7 =6fq7/6cg7=12fq7

Google Translate

from


Uda directory 2017/08/01

 

[oswald1963]

Ok, thanks, I saw that also!
I've some Lowther speakers, so only needed 1-2W on the output.

6SL7+6SN7 SE is looks good, but I try to find a 6SL7+6SL7 or 6SL7+paralel 2 6SL7 schematic.. (you don't ask why... )

 

[oswald1963]

thank you very much!!!!! I'm on it..

 

[kodabmx]

Don't forget 6SN7 is also 6N8S.

 

[Lingwendil]

Yup. And should be even easier to locate in Hungary

 

[oswald1963]

I don't like the russian tubes all of crap. I think the bests '40-'50s US tubes.( or hungarian Tungsram which was made tubes by RCA machines. .)

 

[Lingwendil]

Spend some time with a curve tracer and you will see that certain models are very, very good... The russian 6SN7 and 6SL7 types are every bit as linear as their RCA counterparts. I've switched most of my builds over to them as they are very rugged and quite affordable for the same quality and results. I still have a few fancy-pants old school RCA and similar put away, mainly for historical posterity these days.



Tungsram are of course very good usually as well.

 

[Lingwendil]

Also, actual Russian tube curves, some brilliant tubes if you look at the curves-

Russian Tube Tester Files - Instrumental Curves and more