(25 votes, average: 3.84 out of 5)
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RCA 12at7 Black Plates
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ShuGuang 12AX7
ShuGuang/Ruby 12au7 Gray Plates
(7 votes, average: 2.43 out of 5)Loading...“They made my amp sound lifeless. Someone once used the term, “sounds like a cardboard box”, that’s what comes to mind.” Read
EIA codes to ID USA vacuum tubes
EIA (Electronic Industries Association) codes you might find on a tube. A great resource to have when the original logo is gone or you have a generic logo (remarketed). See the post for all the codes
Continue readingRaytheon 5751 Black Plates, Windmill
(14 votes, average: 3.93 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
Yaqin MS-20L Tube Amplifier
(18 votes, average: 3.72 out of 5)Loading...
“New to tube sound, I wasn’t sure what to expect, but had an idea in all the research and comments on tubes. I WAS NOT DISAPPOINTED AT ALL. In fact I was somewhat blown away at first ” light up “. Maybe it was just the song, but WOW everything was better from top to bottom. The difference was night and day in comparison to the Onk which wasn’t bad, but the Yaqin was better/different in all categories.” Read
“Turned the map on, waited for 20 seconds for it to come alive. And started playback…. What can I say. The whole music scene came alive – I felt the band in the room – incredibly realistic, incredibly warm – complete sonic nirvana. Superb reproduction of Vocal Jazz!!! It’s still burning in and I can hear harsh notes, but overall very impressive. “
All you need to know about Yaqin MS-20L could be found here
And even more reviews
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
Dared VP-300B
(11 votes, average: 3.18 out of 5)Loading...
“Rock out at ear-splitting volumes? Look elsewhere…Enjoy intimate small-group jazz, pop, folk, or chamber music? Give these a listen right away.”
“After a brek in period for the tubes and amp, I will say this is a very good sounding amp. Will it beat a Cary or a Jadis? NO! But it is very good for the money. “ Read
“I’d say I have “liquid mids” and “microdynamics” just galore in here! “ Read
“Warm and lush character with current tubes. Extremely easy to listen to with its involving character. Smooth treble, vocals and midband which cannot be comapred to w/my SS or PP tube amps, regardless of tubes used. ” Read
Continue readingCBS 12BH7 Black Plates
(16 votes, average: 4.13 out of 5)Loading...
Great set of 12BH7 reviews here
Great replacement for any tube in 12a?7 family if your amp can handle increase heater current (600 mA )
Raytheon 12au7 black plates
(28 votes, average: 3.64 out of 5)Loading...
“Don’t miss trying the “organ stock” 12AU7 tubes that were sold to organ manufacturers. These sweet tubes were screened for audio use in organs, and have the organ brand on the label. Usually sold at bargain prices because of the re-branded label, the RCA cleartop and Raytheon blackplate versions are a great find!” Read
“…She told me that the yellow Raytheon 12au7 sounded WONDERFUL in the MG Head OTL, except that it was a little quieter. She reported that the sound quality was practically identical to the Raytheon 5751…” Read