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Pentode Amplification Tubes (Matched Pair)
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.
| Specifications & DC Parameters | |
|---|---|
| Product type | Amplification tubes |
| Supplied quantity | 2 tubes |
| Matched pair | |
| Uf | 6.3V |
| Ua | 465V |
| Ug1 | -41V |
| Ug2 | 465V |
| Ia | 23mA |
| Gm | 11mA/V |
| ri | 15KΩ |
| Ug1-g2 | 11 |
| Filament heating | |
|---|---|
| UH | 6.3V |
| IH | 1.5A |
| 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 capacitance | 15.2pF |
| Output capacitance | 8.4pF |
| Grid to plate capacitance | 1.1pF |
| Grid to filament capacitance | 1V |
| Cathode to filament capacitance | 10pF |
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