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...

COSSOR VALVE KT88 Hiend Vacuum tubes best matched A Pair NEW made by PSVANE replace 6550 100% Brand new Britain COSSOR authorized production, made by PSVANE. Notice: this is the Collection Gray version, it is  different with the Blue standard version the price is for one pair, if you need matched quad(4pic). you can make two pair we can provide the original factory  matched quad(4pic) The price is for A Pair of COSSOR VALVE KT88 Britain COSSOR authorized production, made by...

Static parameters:  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 dielectric loss, and high breakdown voltage,...

Parameter：  Improved structure over the old Shuguang 2A3-T 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  Net weight：2.5kg Shipping weight: 3.8kg  Some...

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 dielectric loss, and high breakdown voltage, high electric volume...

805A-T is direct-heated type thorium tungsten cathode triode, can be used as class B, A-F, and R-F power amplification, class C R-F power amplification and high frequency oscillation. Heater Uf: 10 V If: 3.25 A Direct Interelectrode Capacitances input: 8.5 PF output: 10.5 PF grid to plate: 6.5 PF Maximum Rating Ua: 1500 V Pa: 125 W Recommended Operating Conditions (reference value) class B(A-F) for two tubes typical working condition limited parameter Ua: 1250 1500 1250 V Ia (mAx.sig per tube):...

6CA7-TII  The high-performance audio output pentode has an anode limiting power of 25W. In an audio amplifier, the output power is greater than 10W for single-tube A1 amplification, and the output power is greater than 35W for double-tube amplification for AB1.  6CA7-TII is similar to EL34 and can be used interchangeably.  Filament heating  UH……………………………6.3 V ...

6SN7-BE is a medium u double triode for voltage amplifier circuit. Can directly replace 6N8P and 6SN7GT, 6SN7C, 6SN7 Hot wire voltage UH ………… 6.3 V IH ………… 0.6 A Static parameter Ua ………………………… 90 250 V Ug ………………………… 0 -8V Ia...

Product parameters: The same transconductance pentode EL84 has an anode limit dissipation power of 12W, which is used for class A1, AB1, and B amplification in audio amplifiers. Hot wire heating UH 6.3 (parallel) 12.6 (string) V IH 0.30 0.15 A Limit rating Anode voltage 500 V Anode dissipation power 12 W Second gate voltage 300 V Second grid power dissipation 2 W Cathode current 65 mA First gate voltage -100 V Voltage between hot wire cathodes ±100 V First gate resistance 0.3 MΩ at...