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...

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:...

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...

COSSOR VALVE 805 Hiend 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 805 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 the...

COSSOR VALVE 805M Hiend 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 805M 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 the...

211 is directly heated triode thorium-tungsten cathode, can be used for A, B, C class power amplifier. Filament heating Uf: 10 V If: -3.25 A Electrode capacitance Input capacitance: 6 PF The output capacitor: 5.5 PF Cross-Road capacitors: 14.5 PF Static parameters Ua: 1250 V -Ug: --70 V Ia: 100 mA Gm: 3.8 mA / V u (when Ia = 75mA when): 12 RL: 7 KΩ Pout: 10 W Recommended work status (reference value) Class A single-tube amplification (A-F): Typical operating conditions limit parameters...

PSVANE KT88-TII HIFI Audio amplifier Vacuum tube a pair 100% Brand New 1, PSVANE T-Collection series MK II use the Carbon Microcrystalline technology. Carbon Microcrystalline is a kind of very stable absorbent (material), and it has excellent heat transfer performance. Carbon Microcrystalline make up stabilization of the electrical performance inside of the Vacuum tube.  2, The PSVANE T-Collection series MK II tube socket is made with Teflon. It is very low electric inductivity, very low...

CV181-TII is double triode, used in voltage amplification circuit, Can be replaced directly by 6N8P and 6SN7GT. Heater UH: 6.3V IH: 0.6A Static Parameter Ua: 90 250 V Ug: 0 -8V Ia: 10 9 mA Gm: 3 2.6 mA/V Ri: 6.7 7.7 kΩ μ : 20 20 Ia: when Ug=-12.5V 1.3mA Ug: whenIa=-10uA - 7 -18V Maximum Rating class A1 Ua: 450V Ik: -20mA Pa: 5w Pa(No.1+No2): 7w Rg: 1MΩ Uhk: ±100V

The beam power quadrupole KT88 has an anode ultimate power dissipation of 42W. In the audio amplifier, two tubes can achieve 100W power for the AB1 push-pull output, and KT88 can also be used in the electronic voltage regulator circuit. KT88 is similar to CV5220 and 6550 and can be used interchangeably. Hot wire heating UH............ 6.3 V IH............ 1.6 A Limit rating ------------- --KT94 KT100 KT94 KT100 Anode voltage.................. 800 800 800 800 V Second gate voltage......... 600...

845B is directly heated triode thorium-tungsten cathode, can be used for A1, AB1 class power amplifier. Filament heating U f: 10 V If: 3.25 A Limit Ratings Anode voltage: 1250 V Anode dissipation power: 75 W Maximum signal output power: 150 W Maximum anode current: 120 mA Electrode capacitance Input capacitance: 6 PF The output capacitor: 4.5 PF Cross-Road capacitors: 14.5 PF Static parameters Ua: 1250 V -Ug: 200 V Ia: 80 mA Gm: 3 mA / V ri: 1.7 KΩ u: -5 RL: 3.4 KΩ Ug (pk): --69 V...