Cool.  The guy I got them from inherited an old Zenith toolbox full of tubes and a tube tester.  He tested most of those as NOS before the tester started to malfunction.  The tester is being repaired at an old-school guitar amp shop, and we will be testing some more pairs.  I saw a pair of...

I actually found some local tubes.  Any decent treasures here?   I got 5 of these (4 in boxes)  all the same packing date   And 3 of these in boxes

Quote: I am currently using fat bottle tubes via a socket saver, and it seems to work fine.  I am however a little worried that stacking another adapter on top of them may not be optimal.   I have emailed Jack, he cannot make me adapters and he cannot modify the amp in any way.  He...

Quote: All good suggestions.  Aesthetically, I really like the WA6 form factor, and not so much dual chassis stuff, just my taste I guess.  As far as pursuing a newer WA6, this one has Blackgates and V-caps, which I hesitate to give up.  It sounds really nice with the stock driver...

Quote: I don't know, but I can hope.  He flatly told me he is no longer making them, and I hesitate to hound him since I understand he is now producing an increasingly popular amp and tube adapters probably seem like a PITA now.  

Well, it looks like my pursuit of 6SN7s for my WA6 may have come to an unexpected halt (I can hear my wallet breath a sigh of relief).  It seems that adapters that will fit the small driver tube openings in my WA6 are going to be hard to get.  Unless somebody sees my want ad for adapters, the...

Quote: Thanks for that link.  It would be even better if they linked good photos of each.  

Looking through Ebay, it's nice to see several pages of 6SN7 pairs, with really only a small handfull of the "special" ones at extreme prices.  There are even a few new production versions available like an upgraded version of the treasures.  This is in contrast to the NOS only, dwindling supply...

So, as my tube addiction grows, I am also thinking of getting some 6SN7 adapters for my WA6.  The main problem is that, along with metal based GZ34s, the most well regarded 6SN7s are more than I am willing to spend.   Are any of the more pedestrian 6SN7s a significant upgrade to the stock...

Quote: Sorry for the barrage of questions, but you seem to have rolled a lot of tubes.  Have you ever heard the Tung Sol 5U4G?  And if so, how does it compare to the Mullard GZ37?  

Quote: Yeah, I guess I do have a budget when it gets into that range.  I was mainly considering a small handfull of nice NOS tubes vs. the EML.    I have been watching Mullard GZ37s on Ebay for a while (along with Brimar 5Z4G, 5R4GY) and if I'm patient, I'll get some very nice tubes...

Quote: Ha!  I would love one, but this being Head-fi, you have of course recomended one of the few NOS rectifiers more expensive than EML, and far harder to find a reliable one.    I have read lots of great things about this tube, but I'm afraid its out of my price range.  I had...

I'm looking for some advice on rectifiers for my WA6 (maxxed) too.  Is it worth it to spend money on more NOS rectifiers to try, or should I just get an EML 5U4G instead?  I have a Tung Sol 5U4G that I like better than my Sopia right now, and I'm curious about GZ37s, 34s, 5R4GY's etc.  But I...

3.5 is the gain you want.  Grados are sensitive. 

Quote: I recently ordered one from David as well.  I also waited 6-7 days for a tracking number.  I got impatient and sent him an email inquiring whether it had shipped yet....he sent tracking number and shipped that day.  I would send him an email.