SHUGUANG TREASURE 6CA7-T Pentode Amplification Tubes (Matched Pair)

SHUGUANG TREASURE Pair Tube 6CA7-T paired
Shuguang's 6CA7-T amplifier tubes offer a high quality manufacturing quality that allows for incredible sound performance and incomparably natural sound reproduction. These tubes are delivered paired.

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Shipping date: 06-12-2019.

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Shuguang Treasure 6CA7-T

Pentode Amplification Tubes (Matched Pair)

Shuguang Treasure 6CA7-T Tubes d'Amplification Pentode (Paire Appairée)

Like the 6CA7-Z tube from Shuguang's Treasure range, the 6CA7-T incorporates gold wires and contacts as well as a glass with internal High Polymer Carbon Compound (HPCC) plating. This plating has the particularity of reducing the emission of parasitic electrons that could be reflected on the glass. Shuguang also uses its Super Alloy technology for this 6CA7-T, first used in fields such as aviation, aerospace and military applications. This technology is used by the brand for directional solidification and crystallization of its tube. This considerably improves the electron emission capacity and the stability of the electron current.

The tube also uses other materials such as a thorny Tungsten filament imported from Japan, high-density carbon anode metal from Germany and high-density, high-purity graphite. To ensure the quality of its tubes, Shuguang carries out a manufacturing quality control with numerous tests and running-in periods.

The 6CA7 tubes are compatible with the EL34 models and can therefore be replaced.

These tubes are delivered in pairs, in pairs. This meticulous factory pairing improves the performance of these when used together.

Technical characteristics

Specifications & DC Parameters
Product typeAmplification tubes
Supplied quantity2 tubes
Matched pair
Uf6.3V
Ua465V
Ug1-41V
Ug2465V
Ia23mA
Gm11mA/V
ri15KΩ
Ug1-g211
Filament heating
UH6.3V
IH1.5A
Maximum ratings
Plate voltage (Ua)800V
First grid voltage (Ug1)-100V
Second grid voltage (Ug2)500V
Plate power dissipation (Pa)25W
Second grid power dissipation (Pg2)8W
Cathode current (Ik)150mA
Inter-cathodes heating voltage (Uh-k)+/-100V
Glass temperature (Tbulb)250°C
First grid resistance (Rg1)With cathode bias: 0.7MΩ
With fixed bias : 0.5MΩ
Input capacitance15.2pF
Output capacitance8.4pF
Grid to plate capacitance1.1pF
Grid to filament capacitance1V
Cathode to filament capacitance10pF
 
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The best
En matiere de tubes de puissance EL34 ou 6CA7 il y a ce SHUGUANG TREASURE 6CA7-T et puis le reste.

J'en ai essayé un paquet de tubes, ce qui est assez ruineux, mais c'est le seul moyen de savoir.

Les chinois n'ont jamais cessé de fabriquer des tubes et pour cause, ils n'ont eu accès au transistor que tardivement.

SHUGUANG est certainement la plus grosse fabrique de tubes au monde et certains tubes d'autres marques viennent de chez eux.
Les tubes actuels sont et calculés et fabriqués avec des outils de notre époque.
Désolé pour les Old stock ou autres reliques, mais une Peugeot 208 GTI de 2019 est plus performante qu'une Porsche Carrera des années 70

Ce sont à ma connaissance les seuls à fabriquer des tubes dédiés HIFI, et celui ci en fait parti.
Doux, moelleux, basses rondes ou séches, c'est votre musique qui décide et pas le tube.
Il restituera le son de maniere trés naturelle, sans en rajouter.
Son petit frére en version SHUGUANG TREASURE 6CA7-Z n'est pas mal non plus, mais celui ci est au dessus, légèrement.

Perso je régle le bias à 45ma et c'est le Nirvana.

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This review has been posted for SHUGUANG TREASURE 6CA7-T Pentode Amplification Tubes (Matched Pair)
 
SHUGUANG TREASURE 6CA7-T Pentode Amplification Tubes (Matched Pair)
Shuguang's 6CA7-T amplifier tubes offer a high quality manufacturing quality that allows for incredible sound performance and incomparably...

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