12AT7-TII is high u two-three-nine feet very small tube, used as a voltage amplification, driving push-pull amplification in the amplification circuit. Filament heating UH: 6.3 (and) 12.6 (string) V IH: 0.30 0.15 A Electrode capacitance The gate - the gate: 0.005 PF Anode - anode: 0.4 PF The gate - anode (single transistor): 1.5 PF Gate - cathode filament (single transistor): 2.2 PF Anode - cathode filament (single transistor): 0.5 PF Filament - cathode (single transistor): 2.4 PF Anode -...

Filament heating  UH ----------------- 6.3 (and) 12.6 (string) V  IH ------------------- 0.30 0.15 A  Electrode capacitance  No.1 No.2  Input capacitance ---------- 1.6 1.6 PF  Output capacitance ---------- 0.46 0.34 PF  The cross road capacitance ---------- 1.7 1.7 PF  Static parameters  Ua -------------- 100 250 V  -Ug ------------- 1 2 V  Ia --------------- 0.5 1.2 mA  Gm -------------- 1.25 1.6 mA / V  u ---------------- 100...

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):...

KT88-T is a beam power tetreode, its anode limited dissipation power is 42W. In the audio amplifier, the power can be 100W when it is used as push-pull class AB1 with double tubes, it can also be used in electronic voltage regulator circuit. KT88 is similar with CV5220 and 6550,they can be replaced by each other. Heater Uf: 6.3 V If: 1.6 A Maximum Rating Ua: 800 V Ug2: 600 V Ug1: -200 V Pa: 42 W Pg2: 8 W Ua+g2: 46 W Ik: 230 mA Uh-k: 200 V Tbulb: 250 C Rg1 with cathode bias Pa+Pg2≤35W 0.47...

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...

Description: This pair of power monoblocks are designed with 300B tube to drive a pair of 845 vacuum tubes to produce beautiful midrange but with loads of power. It is designed to address audiophile's complaint that '300B amps are not powerful enough to drive those non-high efficiency speakers, but I still want the 300B sound'. The double power single ended 845 power will overcome those limitations, so that even with a pair of 84-89dB regular efficiency speakers, you can still enjoy the silky...

Feature: Absolutely biggest brand products, quality, technology and after-sale are guaranteed; Power up to 35w or more, enough to push almost all home's or market's HIFI speakers, speakers do not have to worry; Sound effects reach the level of Several thousand dollar in the tube amplifier market; With full performance, whether vocal/strings/symphonic or jazz, all is compatible, swordsmen; Full manual welding scaffolding, ensure quality, it's not with a large PCB from a simple automatic...

Feature: Absolutely biggest brand products, quality, technology and after-sale are guaranteed; Power up to 35w or more, enough to push almost all home's or market's HIFI speakers, speakers do not have to worry; Sound effects reach the level of Several thousand dollar in the tube amplifier market; With full performance, whether vocal/strings/symphonic or jazz, all is compatible, swordsmen; Full manual welding scaffolding, ensure quality, it's not with a large PCB from a simple automatic...

Description：  The Psvane T-series black bottle tubes are a further development over the highly sought after Shuguang Treasure Z-series, which was originally first launched by Grant Fidelity in Jan 2009 in North America as Shuguang’s first take on high end vacuum tubes.  The elite team of engineers who contributed to the Treasure Z-series have done further fine tuning of the Z-series in the past few years. The further development has created a new series called Psvane T-series...