kogeed Posted April 3, 2013 Share Posted April 3, 2013 I am interested in a set of 4 pcs 7591. matched pair , in excellent condition Quote Link to comment Share on other sites More sharing options...
mark1101 Posted April 3, 2013 Share Posted April 3, 2013 You can get those at most tube stores. They are current production. JJs, and EH are the ones I have tried. I prefer the EH myself. Quote Link to comment Share on other sites More sharing options...
Dr Morbius Posted April 3, 2013 Share Posted April 3, 2013 What make and model amp do you need these for? (This is actually a very important question) Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted April 4, 2013 Share Posted April 4, 2013 I've used JJ 7591 tubes with pleasing results. http://www.tubedepot.com/jj-7591s.html Quote Link to comment Share on other sites More sharing options...
mungkiman Posted April 4, 2013 Share Posted April 4, 2013 I've used JJ 7591 tubes with pleasing results. http://www.tubedepot.com/jj-7591s.html And, that's a good deal for a pair! Quote Link to comment Share on other sites More sharing options...
kogeed Posted April 4, 2013 Author Share Posted April 4, 2013 I bought Scott L? - 72. Vacuum tubes should be replaced. Modern, JJ, I ??saw in the proposals for ebey. I want to try to find a vintage, they sing. Waiting for suggestions. Thank you all. Sergey. Quote Link to comment Share on other sites More sharing options...
kogeed Posted April 4, 2013 Author Share Posted April 4, 2013 This should be the same. E.H. is made in Russia, but immediately sent to the United States. In Russia you can not buy them. How do they compare with vintage lamps from the U.S.? Quote Link to comment Share on other sites More sharing options...
Dr Morbius Posted April 4, 2013 Share Posted April 4, 2013 Sergey, I'm sort of an expert on Scott amps and your LK-72 is very similar to my own 299C - and you can't use the newer EH or JJ 7591 tubes because they are bigger than the original 7591's and won't fit. You therefore have to go with original 7591 or 7591A's - which are physically smaller. If you have the LK-72B amp (which is similar to the 299D) there is plenty of room for the EH and JJ tubes. Hope this helps. Steve Quote Link to comment Share on other sites More sharing options...
kogeed Posted April 4, 2013 Author Share Posted April 4, 2013 Thank you. Quote Link to comment Share on other sites More sharing options...
thebes Posted April 4, 2013 Share Posted April 4, 2013 I'm sure Steve will agree with me that the real sonic improvements comes not from vintage power tubes, but from the small signal tubes. I would recommend either Telefunken or Mullard 12AX7's in those units. Can't recall what they originally came with, but if they are original have them tested and go from there. The small tubes last almost forever. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.