Current production EL34 tubes for vtl mb-125

Just looked at your system and we share more than a few commonalities, is the ST150 still in your system, if replaced with the MB125s would love to hear your impressions of the differences. Take a look at my system for the similarities.

I haven't rolled a lot of el34's, but did try the new Mullards & have a couple hundred hours on them now. I do like them in a pair of single ended amps. Haven't tried the Tung Sol's so can't say...    

If your looking for a lower cost EL34 type, I can recommend the JJ E34L (not to get mixed up with the EL34)matched. There approx. $18.00 each at the Tube Store plus extra fee for matched and balanced. These were supplied with my Ars Sonus Filarmonia from the manufacture. I compared these to the KT77 (gold Lion tube) and found I liked these better. I also tried them in Primaluna Prologue 5 and P7 (Monos) amps and was impressed with the sound compared to the cost. Its like anything else, for the most part you get what you pay for, but I think its a great tube for the dollar. I can’t say how it will sound in your equipment. There are other options for a higher cost that I am hoping will improve the SQ of my system; maybe one of the Treasures, Psvane, RFT made for Siemens(RAM) or Sophia electric tubes, but since some are as much as $500.00 per quad, I am taking my time doing the research to be sure as much as possible that there worth the expenditure and do in fact provide better SQ

http://www.thetubestore.com/Tubes/EL34-6CA7-Tube-Types

Here is a link to  a EL34 tube family comparison that you may find helpful.

http://wallofsound.ca/audioreviews/tubes/el34-tube-comparison-with-tubes-supplied-by-www-thetubestor...

Try Cable Company. They have a large selection of tubes (both new and NOS). They test them all and keep track of the differences in SQ so that when you call them, they can make a good recommendation. Not everything is listed on the web site.