TJ Full Music   

Weblink==  https://www.tube-fullmusic.com/products/en-product.htm                

                   [SOLD OUT!]                    300B              [SOLD OUT!!]

                                   300B Solid Plate                                                                              300B/n Mesh-Plate

Gold pins, ceramic base.
The 300b/n/2A3/n meshplate versions out of the TJ factory in Tianjin in China, and are built to the highest standards, achieving astonishing results in 300B based amplifiers , ranging from basic push-pull types to single -ended monoblocks. if you are using 300B amps, you should seriously think about upgrading to these superior valves. Thorsten Loesch tested eight 300B brands in a shootout, which included the highly rated Western Electric, and came to the conclusion that the TJ's possessed a superior sound to any of the competing brands in the test , whilst they are not cheap, they represent fantastic value, compared with the £600 /pair WE's, and offer a far longer life span, [typically 10,000 hours]. They are supplied as matched pairs,[tested on a Sofia curve tracer], each with its own test certificate.

                     6SN7                                                          6SL7 [sold out]

Link to review   https://www.6moons.com/audioreviews/tj+synergy/1.html

https://www.enjoythemusic.com/china_2009/opera_consonance_audio/

Review from A/V Guide [Re-branded TJ]         https://www.avguide.com/blog/giant-killers-new-tubes-sophia-electric

                       12AX7                                                  12AU7

Since 2008, TJ Full Music has expanded to a second manufacturing facility in Tianjin City China, to manufacture high end gold pin, box plate 12AX7 and 12AU7 tubes.
Audiophiles who have tried the 12AX7 and 12AU7 commented that they are even superior to the Telefunken ECC83 tube, some users have reported these to be superior to ANY 12AX7 manufactured so far, better than rare NOS tubes===some claim!!

Link to review       https://www.tonepublications.com/review/tj-music-full-music-vacuum-tubes/

Review from 6moons.com   https://www.6moons.com/audioreviews/tj+synergy/1.html

See what the reviewers think about the TJ mesh-plate valves,

Reprinted from "Enjoy the music.com"

This Valve is rather new, the units I tested where some of the first series units. They are being made in China in the Tianjin Province, the supplier (DIY HiFi Supply) being somewhat coy about more details. The Factory specializes in early WE Replicas and has build up quite a reputation in Japan. Their products are available from a number of sources under the Full Music and All Music label.

The "TJ" label is the "house label" of Opera Audio Hong Kong and DIY HiFi Supply. They claim for the TJ valves added selection and burn in and curve (rather point) matching. DIY HiFi Supply will ship the valves internationally and are pleasant to deal with but for one little detail. Credit Cards are accepted only via the paypal service, other payment methods include bank transfer. In both cases extra effort and expense is needed, this may dissuade some people from ordering.

In terms of build quality these Valves are easily the best in the whole group, with thick glass, substantial internal structures and a superb consistency. These Valves have a number of features that set them aside form the usual, not at least the perforated anode, globe glass envelope and a very different structure for suspending the filaments. Also, the filament wires extend past the Anode structure, a feature claimed by another manufacturer that uses it to improve linearity. No specific claims are being made for any of the features in the Valve and a question on performance elicits a dry "WE Spec" reply.

Sonically this valve was a revelation. In one of my amplifiers I can switch between many Valves including the 45. I always have liked the 45, but it’s limited power meant that often the 300B was preferred, despite it’s slightly thick, overly warm and slow sound. Well, this valve "out 45’s" the 45! It offers that clarity, directness and openness I know from my 45’s but adds power and even more resolution. I love it. The tonal balance is very even-handed, the soundstage is ridiculously extended and opened up. Detail, especially these little background things are exceptionally well resolved. Okay, hand me the drool towel. The fact that the valve glows very, very prettily in the dark is a distinct bonus (see "lit up" picture), but it’s the sound that counts.

While not cheap this Valve to my ears is the highest 300B game in town. I personally would, given the choice (and I have the choice) use nothing less.
https://www.enjoythemusic.com/magazine/equipment/1201/300b