How do we test our TJ Fullmusic tubes?

We curve trace test each TJ Fullmusic tube by our Amplitrex AT1000 tube tester. Results are exported to a spreadsheet for comparison and matching. Below is a interactive sheet to show the curve and test result of each tube. You can check the test reports before you...

Tube Test and Curve Matching

tube-matching Do you want a perfect matched-pair or a perfect matched-quad? Does your amp need tubes within a certain bias arrange or plate current range? Get what you need. Check the test results and the curves before buying. Quote the tube number when you place an...

TJ Fullmusic Tubes Question and Answer

Which 300B is the best? TJ 300B  won the game. “Sonically this valve was a revelation…  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...

TJ FULLMUSIC FACTORY TOUR (2003)

FACTORY BACKGROUND The TJ factory in Tianjan province manufactures WE replicas with a few interesting and creative variations. 300B tubes are available as ST or Globe style with the Globe offering both solid and mesh-style (perforated) anode. The factory is a private...