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Pentode tubes (Matched pair)
These EL84-S PSVane pentode tubes are improved versions of the EL84. They use longer plates, better materials and gold plated contacts, resulting in excellent sound performance. They are delivered matched.
Specifications | ||
---|---|---|
Product type | Tubes | |
Tubes type | Pentodes | |
Number of pins | 9 | |
Contacts plating | Gold | |
Dimensions | 77 x Ø23mm | |
Pins length | 7mm |
Measurements | ||
---|---|---|
UH | 6.3V | |
IH | 0.76A | |
Interelectrode capacitance | Input capacitance : 10.8pF Output capacitance : 6.5pF Transfer capacitance : 0.5pF | |
Ua | 256V | |
Ug2 | 256V | |
Rk | 120Ω | |
Ia | 48mA | |
Ig2 | 7mA | |
Gm | ≥ 9mA/V | |
ug1-g2 | 19 | |
ri | 38kΩ |
Limit values | ||
---|---|---|
Anode voltage | 500V | |
Anode dissipation power | 12W | |
Grid 2 voltage | 300V | |
Grid 2 dissipation power | 2W | |
Cathode current | 65mA | |
Grid 1 voltage | 100V | |
Between filament cathode voltage (pk) | ±100V | |
Grid 1 resistance | Bias : 1MΩ Fixed bias : 0.3MΩ |
RECOMMENDED OPERATING VALUES (ONE TUBE, CLASS A1 AMPLIFICATION) | ||
---|---|---|
Ua | 250V | |
Ug2 | 250V | |
Ug1 | 7.3V | |
Rk | 135Ω | |
RL | 5.2kΩ | |
Ia(0) | 48mA | |
Ig2(0) | 5.5mA | |
Gm | 11.3mA/V | |
ri | 38kΩ | |
ug1-g2 | 19 |