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-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...

Feature: Absolutely wellknow brand product, quality, technology and after-sale are guaranteed; (HIFI EXQUIS co, limited) 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;(HIFI EXQUIS co, limited) With full performance, whether vocal/strings/symphonic or jazz, all is compatible, swordsmen; Full manual welding scaffolding, ensure quality, it's...

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 first-class product. The quality, technology, grade and after-sales service are guaranteed. The Power reaches to more than 35w and makes you not be worry about acoustics.  The sound effect is as good as the amplifiers which are worth 10,000 or 20,000 RMB in the market. With a full range of expressive force to music, such as jazz, symphonic music and so on.  All the welding is done by hands to guarantee the voice. Never cheat the customers with a large area of the...