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...

Parameter：  Improved structure over the old Shuguang 805 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  Package size: 31cm x 31cm x 17cm, 2.2kg  Shipping wight:...

Description：  Got the Psvanes. They replaced KT88 treasures and prior to that Pentas and gold lions. There’s just no comparison. If I had to really quantify what I’m hearing I would say the Psvanes just have confidence to sound amazing where as the treasures sound awesome, but polite and demur. in either case the treasures and the Psvanes beat the pants off of the GLs or anything else for that matter.  Pez on AudioCircle  The Psvane T-series black bottle tubes are a...

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-SE is a double triode for voltage amplification circuit, which can be directly replaced by 6N8P and 6SN7GT. Filament heating UH ………… 6.3 V IH ………… 0.6A Static parameter Ua ………………………… 90 250 V Ug ………………………… 0 -8V Ia ………………………… 10...

Very clean and well maintained PSVANE T-417 Reference Tube Pre-amplifier and Headphone Amp with upgraded power tubes, a pair of Shuguang Treasure 300B-Z, Other tubes are a pair of upgraded RAYTHEON JAN-5842's, a Psvane 12AX7 and a GE5670. Wonderful sounding, excellent extension in both the bass and higher frequencies, this is a pre-amp that is truly deserving of the title 'Reference'!!! This unit consists of two parts: amplification and power. The enlarged part is amplified by 1/255670, and the...