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Vacuum Tube - EF86, Electro-Harmonix
Electro-Harmonix EF86 pentode preamp tube. Made in Russia.
Accessory Items:
| Amplification Factor | 38 | ||
| Body Height | 49.2 mm | ||
| Capacitance, Grid to Heater | 0.0025 pF | ||
| Capacitance, Grid to Others | 3.8 pF | ||
| Capacitance, Plate to Grid | 0.05 pF | ||
| Capacitance, Plate to Others | 5.1 pF | ||
| Cathode Current (Ik) | 6 mA | ||
| Cathode to Heater Voltage, Negative | 50 V | ||
| Cathode to Heater Voltage, Positive | 100 V | ||
| Grid 1 Voltage | -2.2 V typical | ||
| Grid 2 Voltage | ≤ 200 V, 140 V typical | ||
| Grid Circuit Resistance (Rg), Current Bias | 22 MΩ | ||
| Grid Circuit Resistance (Rg), Fixed Bias | 10 MΩ | ||
| Heater Current | 200 mA | ||
| Heater Voltage | 6.3 V | ||
| Internal Resistance (Ri) | 2.5 MΩ | ||
| Item Diameter | 22.2 mm | ||
| Item Height | 55.6 mm | ||
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | ||
| Transconductance (S) | 2.2 mA/V | ||
| Packaging Dimensions | 2.75 in. × 1 in. × 1 in. | ||
| Weight (Packaging) | 0.0375 lbs. | ||
 Specification Sheet | All Models |
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