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6SN7 Tube Addicts - Page 281

post #4201 of 4253
Quote:
Originally Posted by Glam Bash View Post

Intriguing, I would have guessed Sylvania because of the angled plates. I just assumed CBS got gobbled up by a bigger company by the time the 6SN7GTB "rolled" around.

So, here are some pics of the CBS tube compared to a 55 sylvania GTB:




From the front, the triangular plates are identical. From the side, there are five holes of identical size.... But the flaps made by the hole punch are on different sides. Other than this very minor difference, same plates... Same tube manufacturer?
post #4202 of 4253
post #4203 of 4253
Quote:
Originally Posted by 2359glenn View Post


I have already made this adapter but the amp has to be running the 6SN7 off AC.
If you can take a reading 6.3 volts AC or close.  It will not work on a amp running the 6SN7 on DC.

My amp uses 6.3V AC.... Do you have some pics and more info? Thx...
post #4204 of 4253
Quote:
Originally Posted by MMMan View Post

Same tube manufacturer?

 

I'm not saying that the tube wasn't made by CBS, but who knows, perhaps designs/tools/supplies were shared.

post #4205 of 4253
Quote:
Originally Posted by Oskari View Post

I'm not saying that the tube wasn't made by CBS, but who knows, perhaps designs/tools/supplies were shared.

Thx.. I'm just interested in learning.
Edited by MMMan - 8/26/14 at 3:55am
post #4206 of 4253


Real 1578s... Metal base and holes in the plate.

Wow, these sound amazing! Great bass, great treble, great dynamic transients (attack) and beautiful voices. Wow. Worth every penny!
post #4207 of 4253
Bargain of the century. $6 smily_headphones1.gif

post #4208 of 4253
These arrived on Friday:



Wow, they sound amazing!!

Beautiful highs and mids, plus deep clean bass you can 'feel'. These are VERY nice tubes!!
post #4209 of 4253

always thrilled to see one of our headfiers scoring a gem , and enjoying it !

post #4210 of 4253
Quote:
Originally Posted by MMMan View Post

Bargain of the century. $6 smily_headphones1.gif

These are very nice tubes.  Wish I could get a few for that price for backup.   Great find.

post #4211 of 4253
Quote:
Originally Posted by Neogeo333 View Post

These are very nice tubes.  Wish I could get a few for that price for backup.   Great find.

Thx... A total of $14 for the pair smily_headphones1.gif

post #4212 of 4253
N the postage is 20bucks....!? :-)
post #4213 of 4253
Quote:
Originally Posted by Lorspeaker View Post

N the postage is 20bucks....!? :-)

I live on Australia, so postage from the US usually runs $15 to $20 for a lot of 5 to 7 tubes. An extra $2 to $3 each tube....
post #4214 of 4253

Hi guys.

 

Am relatively new to this particular thread, but have followed your postings for some time recently.

 

My first reason was for using the 6SN7 as power tubes in our rolling experiments over at the Little Dot...Rolling Guide. And they were a great improvement over the stock 6N6Ps or 6H30Pi-EH (and I found even over the VERY expensive 6N30P-DR). Then we discovered the 6AS7G (especially the GEC version!), which even surpassed the 6SN7 (as power tube, that is).

 

Well, in my quest for a better amp to do real justice to these tubes, but at a price below the likes of the Glenn, LaFigaro 339 etc. I approached the makers of the Feliks-Audio Espressivo-E (in Poland) and suggested they consider a unit that used these two types of tubes - both of which are very popular, of course -  instead of the current 6N1Ps and 6N6Ps...And they agreed! They have now started a prototype, which they hope to complete within the month and are seriously working towards (hopefully!) being able to pitch it BELOW $500, which I am sure would be quite a feat and which I suspect might appeal to some of you who appreciate the 6SN7, especially in combination with the 6AS7G/6080.

 

If anyone is interested and would like to know more/follow progress, I have started a new thread - "Feliks-Audio...a 6SN7 + 6AS7G/6080 prototype".

 

The more interest is shown, the more incentive there will be for them to make it work! (Well, to my way of thinking anyway...). So all are welcome...

post #4215 of 4253

Darkvoice already makes an economical amp which uses 6SN7 & 6080 / 6AS7 tubes. Is this something similar ?

 

http://www.ebay.com/itm/DarkVoice-336SE-Headphone-Tube-Amplifier-neat-technics-/260695457691?pt=US_Pro_Audio_Amplifiers&hash=item3cb2a8ff9b

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