Improved structure over the old Shuguang 211 model for safe shipping  Wider diameter (2 1/2″) for stability and quick heat dissipation  Gold coated brass base to improve shielding to interference  Gold coated pins to enhance connection over long term  All parts are selected to the highest grade plus only highly experienced workers to assemble  Suggested burn-in time is 75 hours  Some precautions about using high voltage power tubes:  Unlike other vacuum...

COSSOR VALVE 845 Hiend Vacuum tubes best matched A Pair NEW made by PSVANE 100% Brand new Britain COSSOR authorized production, made in China by PSVANE. The price is for A Pair of COSSOR VALVE 845 Britain COSSOR authorized production, made by PSVANE. Carbon Crystal II Generation Technology* Ten years ago, the Noble Voice R&D team applied carbon crystal technology to audio vacuum tubes. The carbon crystal II generation technology further enhances the heat conduction performance on the basis...

PSVANE 2A3-Z 274B-Z KT88-ZCV181-Z EL34-Z 300B-Z Vacuum Tubes The sound is warm and sweet, loose and natural, with high balance, a peaceful background, and rich details. Compared to ordinary electronic tubes, it has a more prominent analog flavor. The separation of human vocal instruments is high, and the overall sound has a texture of vinyl. Process characteristics: ☆ The crystallization of over 15 years of experience in the research, development, and production of high-end HIFI boutique...

The major difference seems to be that the Psvane is far more extended at the frequency extremes,but at the same time has a far more richer harmonic presentation. Much like the qualities of NOS 845′s  In comparison to the others, the 845T, right out of the box, seems brighter. After about 10 hours I began to notice a difference. Compared to the 845B, they seem far more transparent but at the same time much cleaner. Bass tones and pitch definition are improved. String tone seems to be...

300B-SE customized pipe system directly heated cathode power transistor for A1 class amplification. In the audio amplifier output power requirements for adaptation in 10W occasions.   Limit Ratings Anode voltage: 480V Anode dissipation power: 40W Cathode current Self-bias: 100 mA Fixed bias: 70 mA Electrode capacitance Input capacitance: 9PF The output capacitor: 4.3PF Cross-Road capacitors: 15PF Static parameters Ua: 300V -Ug: 60 V Ia: 60mA Gm: 5.5mA / V Ri: 0.7 KΩ μ: 3.85 Pout:...

COSSOR VALVE 300B Hi-end Vacuum tubes best matched A Pair NEW made by PSVANE 100% Brand new Britain COSSOR authorized production, made by PSVANE. The price is for A Pair of COSSOR VALVE 300B Britain COSSOR authorized production, made by PSVANE. Carbon Crystal II Generation Technology* Ten years ago, the Noble Voice R&D team applied carbon crystal technology to audio vacuum tubes. The carbon crystal II generation technology further enhances the heat conduction performance on the basis of...

Psvane KT150J  Hi-end Vacuum tubes Electric tubs Matched Pair Replace  KT170 KT120 KT88 100% original factory and brand new the price is for one matched pair so if you need matched quad, we also can provide it

Specification:  2.2 Electrical parameters ---- Rating rating unit  2.2.1 Capacitance between electrodes  2.2.1.1 Input Capacitance 15.5 PF  2.2.1.2 Output Capacitance 8.4 PF  2.2.1.3 Cross-circuit capacitance ≤ 1.5 PF  2.2.2 Typical operating parameters  2.2.2.1 Hot wire voltage 10 V  2.2.2.2 Hot wire current 0.36 A  2.2.2.3 Anode voltage 135 V  2.2.2.4 Curved gate voltage 135 V  2.2.2.5 Control gate voltage -3 V  2.2.2.6...

Filament heating  Uf .............................. 2.5 V  If .............................. 2.5 A  Static parameters  Ua .............................. 300 V  -Ug .............................. 45 V  Ia .............................. 60 mA  Gm .............................. 5.25 mA / V  ri .............................. 0.8 kΩ  μ .............................. 4.2  Pout .............................. 3.5 W  Limit rating ...

A very cost effective special customize version of 6SN7,  glod pin and smock glass, and grey smock plate PSVANE in the global audio Vacuum Tube market, the main reason for the affirmation is that it has a unique sense of music and rich musical expression. Even in the cost-effective product line, PSVANE do not give up the pursuit of sound quality. In the 6SN7-SEVacuum Tube also precipitated PSVANE artisan spirit. Compared with the same price competing products, 6SN7-SE has a leapfrog...