Been following this thread for a while, don't have the Elekit yet but plan on purchasing soon. The Schiit Lyr was my gateway back into tubes, and I have many sets of Amperex, Telefunkens, etc for rolling. My comment today is regarding tube testers. A few months back I picked up a Sencore TC154...

First off, I never said Russian tubes are crappy. see my review.I was responding to the assertion, " I have Russian tubes that blow the Philips E188CCand E88CC away - far away." For me Miniwatts, Holland Valvo, are all Phillips E188CC's. And I like you RESPECTFULLY disagree about which one...

First off, lets level the playing field!!!!!!!!Bob, I respect your vision that your idea of "Russian Tubes" is your Holy Grail. However this idea is your "VISION". NO OTHER REPUTABLE tube seller or GURU PURPORTS THIS VISION!!!!!!. Your assertion that "you have Russian tubes that...

I have been watching this thread from afar for a while. I have a Schiit Lyr, and a few thousand $ of 6DJ8 variants. As a DIY guy this amp has my interest, more "TUBEY" than the Lyr. Anyway, Effusion is giving the best recommendation. Anyone who is committed to DIY tube stuff HAS TO GET A TUBE...

Gosh really, the new  EH tubes, really???????????????   Got some Cryo Genelex , Cryoset, 6922, REALLY???????????  Glad you like them, Sale price, $FREE, REALLY! GETR /DONE, NEWBS RULE!!! I would like to post I am done with "NEWBS"

The 5751 is NOT  compatible with the Lyr2 or Lyr1, Thurton has posted a list of compatible tubes here on this thread. 

Can I perhaps add some levity to this current "what is the best tube" frenzy going on. First off, "THERE IS NO BEST TUBE". Anyones "best tube", "holy grail", really is dependent on any individuals exploration of the choices available to them. There are many so called "HOLY GRAIL" tubes. Although...

+1!!!!!!!! Some of my faves too. There are "tube", speaker and enclosure digital emulators, "boxes", for guitars and amps. The technology is there.

Gosh, I am starting to feel old. My paper and pencil system works fine, but then there is the file cabinet just for tube logs!!! Gotta digitize, plenty of room on the hard drive, thanks Thurston!!!!!

I use the cheaper ones from Hong Kong too, they work just fine for me. Gold plated and durable!

MY RATINGS:       I am coming up on a year of owning the Lyr1. I have listened to 18 pairs of tubes and spent way to much money getting to this point. The good, I am perfectly happy with my top tubes. They have transformed the Lyr with stock 6BQ7A tubes, into a totally engaging, captivating...

From my sleeve of 5 tubes, NOS/NIB, only 3 have discern-able characters. Piecing together what is visible on all three, 3A7 1239. Code in various places, vertical, one obscured by painted label. 90% sure. Thanks for your help.  

I asked that seller about those tubes, codes? His response was they are relabeled Tesla.

Teeny tiny vertical #s, yeah, format, but the 6BQ7A is not referenced in that post??, I will look closely at the #s with my 20X loupe and report back. My PCC88 with the mystery 7G/B36 code, alleged British, also still a mystery. I am going to contact the National Valve Museum in Britain that has...

Just got my Brimar 6BQ7A's a couple days ago, about 48hrs burn in. They were in a sleeve of 5, military surplus, NOS/NIB. I agree with mid-fi, but "upper" mid -fi. Really enjoying Christy Baron,  "Steppin", nice warm mids, good bass and nice treble detail. The boxes say "THORN-AEI RADIO VALVES...