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6SN7 Tube Addicts
Feb 16, 2013 at 2:07 PM Post #3,226 of 7,413
So what you guys are saying I scored a good pair of 6sn7?  I saw a similar 6sn7 on ebay but it says b65/ qb65.  Same construction as mine with same ceramic mica.  They even say made in Germany.   God knows why he wants so much for it.
 
Feb 16, 2013 at 5:14 PM Post #3,227 of 7,413
The very first RFT's were made in Germany, the later one's were produced in Russia or Ukraine, not sure which but there was a pretty lengthy discussion on another forum (think it was Audio Asylum), but from just looking at it, I'm sure those 6SN7's you have are Soviet one's because as I said I had a quad matched purchased from a tube store. I still stick by original impressions with them, they sound just "OK". How much is the seller asking? And also beware of fake relabels - alot on ebay.
 
Btw, do find the MK VI+ not that far from the LG?
 
Feb 16, 2013 at 7:06 PM Post #3,228 of 7,413
The mk6 has power in spade.  It can move my orthos easily.   What the LG bring is fineness and more musicality.   If I use the same tube let say a Sylvania metal base 6sn7w on both amp, the LG sounds better.  But then again the mk6 was designed with 6sl7 in mind not 6sn7.  If I would score both amp on a scale of 1 to 10, 10 been perfect.  The LG scores 9 and the mk6 7.5.  Yes the mk6 is that good for the money.   
 
Feb 16, 2013 at 7:21 PM Post #3,230 of 7,413
Quote:
neogeo333 said:
I saw a similar 6sn7 on ebay but it says b65/ qb65.  Same construction as mine with same ceramic mica.  They even say made in Germany.
Click to expand...

 
True B65s or QB65s must be UK-made by MOV.
 
God knows why he wants so much for it.
Click to expand...

 
Ignorance? Greed? On the other hand, the RFT ceramics are rareish as well.
 
Feb 19, 2013 at 8:42 PM Post #3,232 of 7,413
Quote:
neogeo333 said:
The mk6 has power in spade.  It can move my orthos easily.   What the LG bring is fineness and more musicality.   If I use the same tube let say a Sylvania metal base 6sn7w on both amp, the LG sounds better.  But then again the mk6 was designed with 6sl7 in mind not 6sn7.  If I would score both amp on a scale of 1 to 10, 10 been perfect.  The LG scores 9 and the mk6 7.5.  Yes the mk6 is that good for the money.   
Click to expand...

Yeh it is a good amp, I might attempt to get mine back to LD and have David install the upgraded caps and wiring, I can do it myself but I don't want to risk in having a $850 door stopper or voiding warranty. Although the tube rolling on the LG is any tube rollers dream, the price of the amp 4 times more than the LD though. One thing I know for sure is that it is definitely a very good amp and I find it out performs most products worth more than it such as the Woo's up to WA22's.
 
Quote:
oskari said:
 
Right, Soviet sector of Berlin, that is.
Click to expand...

 
Ok thanks for clarifying that, guess some of the stamped codes indicate the plants original NOS and reissues were made from.
 
Feb 20, 2013 at 3:40 AM Post #3,234 of 7,413
I finally tried my first 6H12C on my Glenn's OTL.
 
The low end is phenomenal, not bad tubes.
 
To complete my collection I sourced a spare pair.
 
 

 
Feb 20, 2013 at 4:54 AM Post #3,235 of 7,413
 
Click to expand...

Quote:
neogeo333 said:
If David from LD ever gets a new MK6+ Rev.2 that can handle 6336 tubes and upgraded internals, I am all in. 
Click to expand...

Well you never know it could happen from what I have heard that their will be another successor amp to the MK 6 and 8 meaning a new flagship.....but seriously for the price the MK 6 is hard to beat....
 
 
Quote:
rosgr63 said:
I finally tried my first 6H12C on my Glenn's OTL.
 
The low end is phenomenal, not bad tubes.
 
To complete my collection I sourced a spare pair.
 
 
Click to expand...

 
Lucky you! I may have to source a matched/balanced pair just to try out again, my first experience with them was not a good one. 
 
Feb 20, 2013 at 5:09 AM Post #3,236 of 7,413
The 6H12C are not equivalent to the 6SN7 as they have a 0.9A heater current compared to 0.6A of the 6SN7.
The transformer must be able to handle this.
 
After talking to Glenn who confirmed that my amp can easily handle them I decided to buy one to try and the results were good.
 
In a different amp of course they may sound bad, a lot depends on the system. 
 
Feb 20, 2013 at 5:27 AM Post #3,237 of 7,413
Quote:
rosgr63 said:
The 6H12C are not equivalent to the 6SN7 as they have a 0.9A heater current compared to 0.6A of the 6SN7.
The transformer must be able to handle this.
 
After talking to Glenn who confirmed that my amp can easily handle them I decided to buy one to try and the results were good.
 
In a different amp of course they may sound bad, a lot depends on the system. 
Click to expand...

 
 
EDIT: I have read wrong and replied back thinking it was the previous RFT 6SN7 tubes you were still talking about....my bad haha. Btw how's the Glenn?
 
Are these worth the asking price?
 
http://www.ebay.com.au/itm/1-Tung-Sol-CTL-6SN7GT-6SN7-GT-Vacuum-Tube-NOS-NIB-Black-Round-Plates-Rare-NEW-/380578800210?pt=Vintage_Electronics_R2&hash=item589c43a252&_uhb=1#ht_2416wt_879
 
Feb 20, 2013 at 7:38 AM Post #3,238 of 7,413
They aren't "these".  The price is for 1 tube.  Way overpriced even in this day and age of inflated prices.
 
Feb 20, 2013 at 9:30 AM Post #3,240 of 7,413
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