Notice: the price is just for one tube,if you want to matched pair, please buy two tubes Some precautions about using high voltage power tubes:  Unlike other vacuum tubes such as KT88 or EL34, which typically run at 450V plate voltage, high voltage power tubes such as 845, 805 and 211 run at plate voltage 900V or even higher depending on your amp design. Due to the high voltage in the circuit, biasing an 845 / 805 or 211 amp improperly may expose you to lethal high voltage causing instant...

Features: Filament heating Uf: 6.3 V If: 4 A Limit rating Anode voltage: 1250 V Anode current: 125mA Anode dissipation power: 40W Grid current: 50mA Interelectrode capacitor Input capacitor: 5.5 PF Output capacitor: 0.6PF Transfer capacitor: 5.5 PF Static parameter Ua: 2000V -Ug: 2V Ia: 260mA μ(When Ia=20mA): 160

PSVANE VACUUM TUBE WE845 is direct-heated type thorium tungsten cathode triode, class A1 and AB1  Specification:  Heater  Uf---------------------------------------10 V  If----------------------------------------3.25 A  Maximum Rating  Ua----------------------------------1250 V  Pa-------------------------------75 W  Pout(max.sig)--------------------------150 W  Ia(max)------------------------------120 mA;  Direct Interelectrode...

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...

PSVANE WE300B PLUS vacuum tubes Western Electric replica Valve 300B Best Matched Pair brand new The price is for a pair of PSVANE WE300B PLUS vacuum tubes Western Electric replica. PSVANE WE300B PLUS can place with the tube 300B perfectly.  If you buy 2pair(4 pcs), we will send the Factory full matched tubes to you.  Features： a) PSVANE WE300B PLUS, strictly follows the American Western Electric 1960s traditional craft meticulous build, whether sound or quality of any non-modern...

Parameter：  This Psvane HiFi Series 274B is an interim product for re-producing the legendary WE274B 1:1 replica. It doesn’t have 100% same appearance as the original WE274B but sound quality is probably the best among all current production rectifier tubes. (The final WE Replica series WE274B 1:1 will be available at future date upon factory notice)  On some Chinese webpages, this tube is referred as WE274B Replica because some original WE filament materials are used in...

WE211 is direct-heated type thorium tungsten cathode triode, can be used as class A, B and C. Heater Uf: 10 V If: 3.25 A Direct Interelectrode Capacitances input: 6 PF output: 5.5 PF grid to plate: 14.5 PF Static parameter Ua: 1250 V —Ug: 70 V Ia: 100 mA Gm: 3.8 mA/V u(Ia=75mA): 12 RL: 7 KΩ Pout: 10 W

The difference between PSNAVE WE205D or WE205D-L is pin.  WE205D needs to match original WE-style tube socket,  WE205D-L only need Normal tube socket.  Specification:  Electrical parameter rating value unit  Direct Interelectrode Capacitances  Input 4.8 uuF  Output 5.2 uuF  Grid to plate ≤ 3.3 uuF  Typical operating parameter  Heater voltage 4.5 V  Heater current 1.6 A  Ua 300 V  Ug -30 V  Ia 8 mA  Amplification...

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...

These are the latest release from Psvane Audio as their affordable series for everyone.  It inherits the warm sound of Chinese 300B tubes compared to the dry sounding Russian tubes, but also offer you incredible details at a small price tag.  Features:  Clear glass enclosure  White ceramic base  Gold coated pins  Can replace all standard Shuguang 300B tubes  Factory matched pair – each tube packed in its own box  Some precautions about using high...