Shuguang Treasure 2A3C-Z electron tubes can replace of 2A3 Best Matched Pair 100% Brand new The price is for a Best Matched Pair of Shuguang Treasure 2A3C-Z vacuum tubes.  If you buy 2pair(4 pcs), we will send the Factory Full Matched tubes to you. Shuguang Treasure 2A3C-Z is a directly-heated cathode power dual triode tubes. Work on Class A1, AB1 amplifier.  Feature:  Using "High Polymer Compound Carbon (HPCC)" technology;  Using "Super Alloy " technology;  Improve the...

Parameter：  True “Treasure” as a result of Shuguang’s 50 years of expertise in vacuum tube design and production.  High Polymer Compound Carbon (HPCC) coating is for the first time used on vacuum tube production. Compared to traditional carbon spray technology, HPCC coating will allow greater concentration of electrons, enhance and maintain stability of the electron flow, maximize “secondary electron emission surpression” from the glass enclosure, in...

The new Teana 6SL7-T features: High pass through lead free large glass shell design, not only to speed up the cooling effect of the tube, but also make the whole tube more beautiful and exquisite processing technology, reflecting the value of her The sounds of nature series of pin and socket are all gold (24K), can withstand the test of salt, ten years do not fade, do not fade good conductive properties. Fully maintained and over original sound features of the tube Precision matching, no...

  Adopt "High Polymer Compound Carbon" technology Adopt "Super Alloy" technology New design of glass bulbs to increase vacuum volume Improved vacuum extraction technology to effectively increase vacuum Adopting three layers of mica sheets and four independent supporting steel tubes to completely eliminate the microphone effect Gold grid, gold-plated pins, white porcelain Due to the use of new materials and processes, the recommended time for the tube is 300 hours.

Description：  Beam power tetrode KT66, limit its anode dissipation power is 25W, for A1, AB1 audio amplifier , AB2 class amplification .  Hot wire heating  U H ............ 6.3V  I H ............ 1.27A  Recommended operating status ( reference value )  Push-pull Class A1 zoom ( self-bias )  Ua ........................ 390 250 V  Ug2 ..................... 275 250 V  -Ug1 ..................... 22.5 17.5 V  Rk (per tube) ...... 500 200...

845-T characteristics  This product completely designed reference to the original GE845  The high permeability unleaded glass shell design, both to speed up the tube cooling effect, and also so that the entire tube more aesthetic  High purity high density graphite material, anode dissipation power than similar products increase by 20%, fine processing technology, reflects the value of her  Imports efficient thorium-tungsten cathode, dynamic distortion and a more shock...

805A-T features introduction  The anode end of the tube from the output, to meet safety requirements  High transmittance glass, ensure the beautiful shape, improve work heat  West high density spring carbon plate, plate consumption unlimited upgrade, the tube is stable and reliable  High fidelity, large dynamic output, is enough to have ears addiction  The extension tube foot design, let the bile duct with the base at zero resistance state  Sounds of nature series...

Shuguang WE211 vacuum tube.  Futures:  Shuguang brand WE211 tube is replica of American Western Electric vacuum tube, WE211 is for amplifier audio amplification.  The Shuguang is the only one Factory who truly full replica of American Western Electric vacuum tube!  More than 20 years of work experience technicians carefully assembled, chief designer on-site executive producer, the world's top 16 listeners comprehensive verification the sound.  Shuguang replica of...

The Dawning PLUS series of tube products were designed by Dawning's senior engineer and member of the National Electric Vacuum Standards Committee, Mr. Long Jixue. He created the first of its kind. The latest PLUS series of tubes from Dawning adopts a new manufacturing process and special grade materials. For example, WE300BPLUS, WEKT88PLUS, WE6SN7PLUS and WE6SL7PLUS, which are currently available, are further developed on the basis of the original Rex tube. Most of the materials are used. It...

Futures:  Shuguang brand WE6SL7 tube is replica of American Western Electric vacuum tube, WE6SL7 is for amplifier audio amplification.  The Shuguang is the only one Factory who truly full replica of American Western Electric vacuum tube!  More than 20 years of work experience technicians carefully assembled, chief designer on-site executive producer, the world's top 16 listeners comprehensive verification the sound.  Shuguang replica of Western Electric vacuum tube was...