(7 votes, average: 2.57 out of 5)
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ShuGuang 12AX7
3
(7 votes, average: 2.57 out of 5)Loading...Category Archives: 12ax7/ECC83
(7 votes, average: 2.57 out of 5)Loading...Raytheon 5751 Black Plates, Windmill
(13 votes, average: 3.85 out of 5)Loading...“I do believe I’m in love. The Raytheon black plate 3 mice (1961)
is truly wonderful. I do like it better even than a GE BP 3-mica (1957).
clarity, dynamics, bass. yum.”
” Sweet and smooth Raytheon 5751 tubes with the rare four bladed windmill shape top getter. Rich and smooth tone with quiet background.” Read
Sylvania JHS 5751 Black Plates, 3 mica
(11 votes, average: 4.36 out of 5)Loading...
“Wow, now here is a tube I didn’t expect to be as nice as it is, especially with the gold brand to compete with. This is a great tube, very solid buy. The dynamics are great, and they reproduce the sound very accurately.” Read
“Its strength is its midrange, but it may also be its weakness. The mids here are full, lush, tangible and maybe (just maybe) a trifle overblown. Occasionally i find the lush full vocals obscure just a bit of detail and reduce transparency slightly, but the mids are so lush I could understand how you might not care.” Read
GE 5751 Gray Plates
(11 votes, average: 3.00 out of 5)Loading...
“Will outlast and outperform any of the current production crap! These are Joint Army-Navy tubes, USA made, and are a BARGAIN right now.” Read
” I love em, especially if an amp is prone to fizz or brittleness in the crunch, they will smooth it out, but its not like drastically reducing the gain so its a nice compromise” Read
“GE Triple Mica 5751 is absolutely unbeatable in the line stage of any Fisher that uses 7591 or 7199 output tubes, but not for 7868 output tubes” Read
Sylvania 5751 Gold Brand Gray Plates Triple Mica
(11 votes, average: 4.36 out of 5)Loading...
” To my ears it is the the 2nd or 3rd best 5751 ranking up there with the Sylvania & GE black plates. Its strength is its midrange, but it may also be its weakness. The mids here are full, lush, tangible and maybe (just maybe) a trifle overblown. Occasionally i find the lush full vocals obscure just a bit of detail and reduce transparency slightly, but the mids are so lush I could understand how you might not care. ” Read
Continue readingGE 12ax7 Gray plates
(6 votes, average: 2.67 out of 5)Loading...
“very quiet and tame medium gain tube. These were very well constructed back in the day and will provide hours and hours of vintage tone.”
“It is a great sounding tube, with wonderful air and detail. Helically-wound filaments for low hum and is quieter and more consistent than the ones they had partially assembled overseas later. If you want one of the better sounding 12AX7’s ever made and don’t want to pony up the big bucks for the Tele’s and so on, this is it!” Read
Electro-Harmonix 12ax7
(6 votes, average: 3.00 out of 5)Loading...
“This Russian tube is full bodied and bright with a more straightforward presentation. It packs a lot of bite with its higher than normal gain.” Read
Telefunken 12ax7 smooth plates
(11 votes, average: 4.00 out of 5)Loading...
The tube is the king of the tubes if used with care. This is superbly detailed tube with huge sound stage. Could be an overkill for a bright system, because it will make the system sound clinically bright and lifeless, but if mixed with warm sounding tubes (anything with black plates), it can produce and incredible sound that other tubes will be envious off 🙂
“Watch for the rare Telefunken smoothplates with a cloth label on the glass marked “selected tube”. Often these have red painted tips. . . These were all screened for critical use in medical equipment, with the “selected tube” or L&N versions being the best. Both red and blue tips are incredibly quiet and very three dimensional in sound.” Read
Continue readingRCA 5751 Black Plates Triple Mica
(11 votes, average: 4.55 out of 5)Loading...
“These are old and fine 1950s vintage blackplates, quality on par with the blackplate RCA 12AX7 tubes, and are excellent, sweet sounding subs for the hard-to-find 12AX7. 3 mica spacers with extra side support rods, and the distinctive square getter all add up to vintage quality that will never be made again.” Read
“These are probably the best for Pink Floyd. I hate them for heavy metal though, it sounds muffled. The vocals and highs aren’t really as dynamic as with the Raytheon. Altogether, this is a nice tube for the money. It certainly beats up a lot of others I have experienced.” Read
“The RCA has a nice big and wet bass. It has a rich and creamy midrange which controls sibilants well. On the downside, brass lacks bite and dynamically, this tube sounds a little bit slow.” Read