Description

1pc Psvane Tube New EL84 Valve audio amplifier Preamp SPECIFICATION With the same transconductance pentode EL84, its anode limit dissipation power is 12W, and it is used for A1, AB1, and B class amplification in audio amplifiers. hot wire heating UH 6.3 (parallel) 12.6 (string) V IH 0.30 0.15A limit rating Anode voltage 500 V Anode power dissipation 12 W Second gate voltage 300 V Second gate dissipated power 2 W Cathode current 65 mA First gate voltage -100 V Voltage between hot wire cathodes ±100 V first gate resistor 0.3 MΩ at fixed bias 1 MΩ at self bias Interpole capacitance Input capacitance 10.8 PF Output capacitor 6.5 PF Cross-circuit capacitance 0.5 PF Capacitance between the first grid wire 0.25 PF static parameters Ua 256 V Ug2 256V Rk 120 mA Ia 48 mA/V Ig2 7 Gm ≥9KΩ ri 38 μg1-g2 19 Recommended working state (reference value) Single tube class A1 amplification Ua...................................... 250 V Ug2 ................................. 250 V -Ug1 ................................. 7.3 V Rk......................................135Ω RL.................................................5.2kΩ Ug1(r.M.S)................ 0 3.4 4.3 4.7 V Ia(0)................................ 48 - - - mA Ia(max.sig)............ - - 49.5 49.2 mA Ig2(0)....5.5 - - - mA Ig2(max.sig).............. - - 10.8 11.6 mA Gm........................ 11.3 - - - mA/V Ri........................ 38 - - - kΩ μg1-g2................... 19 - - - Pout................................. 0 4.5 5.7 6.0 W Dtot................................. 0 6.8 10 - % Payment l Payment is expecting within 5days after you win the item or pls contact us. l You must offer telephone for delivery. Shipping and Handling l We ship the order within 3days after the payment. l We ship the package by registered air mail. It will last about 7-14days or longer in some countries. l We ship to the confirm paypal address. Pls make sure your paypal address is right. Or match the address when you payment.