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Replacement Matched Tube for Audio-GD Vacuum 6x 6H2N-EB (6N2PEV) + 4x 6U4N-EB (6Z4)
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6H2N-EB + 6U4N-EB Tubes
Replacement Matched Tube for Audio-GD Vacuum 6x 6H2N-EB (6N2PEV) + 4x 6U4N-EB (6Z4)
This set of matched tubes consists of 6 6H2N-EB (6N2PEV) and 4 6U4N-EB (6Z4) tubes. Supplied by Audio-GD, they allow the replacement of the tubes of the brand's Vacuum preamplifiers, in the event that they are defective. As the tubes are factory matched, they are optimized to provide the best audio performance.
6H2N-EB Tube
Technical characteristics
| General | |
|---|---|
| Product type | Tubes |
| Matched tubes | |
| Tube models | 6x 6H2N-EB 4x 6U4N-EB |
| 6H2N-EB : General characteristics | |
|---|---|
| Tube type | Double triodes |
| Number of pins | 9 |
| UF | 6.3V |
| UA | 250V |
| UG | 1.5V |
| Filament (heater) current | 340mA +/-35mA |
| Anode current | 2.3mA +/-0.9mA |
| Inverse grid current | <= 0.1mKa |
| Cathode-Heater dissipation current | <= 15mKa |
| Mutual conductance | 2.1mA/V +/-0.45mA/V |
| Gain coefficient | 100 +/-15 |
| Vibration noise (RA=10kΩ) | <= 100mV |
| Inter-electrode capacitance | 2.35pF +/-0.35pF |
| Triode 1 output | 2.25 +/-0.5 |
| Triode 2 output | 2.5 +/-0.5 |
| Transfer | 0.55-0.8 |
| Lifetime | >= 5000h |
| 6H2N-EB : Limit values | |
|---|---|
| Heater voltage | 5.7-6.V |
| Anode voltage | 300V |
| Cathode heater voltage | 100V |
| Cathode current | 10mA |
| Anode dissipation (each triode) | 0.8 |
| Grid circuit resistance | 1MΩ |
| 6U4N-EB : General Characteristics | |
|---|---|
| Tube type | Rectifier |
| Number of pins | 7 |
| Heater voltage | 6.3V |
| Heater current | 0.6A |
| Ih | 600 +/-60mA |
| Irec | 75mA |
| Uh | Max : 7V Min : 5.7V |
| Uinv | Max : 1000V |
| ID | Max : 300mA |
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