One Matched Pair HIFI Amplifier LinLai 7300B-D Audio Vacuum Tube Brand New: Linlai 7300B-D is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W. Heater Uf(DC)………………5V If(DC) …………… 1.2A Maximum Rating Ua……………300V Pa………40W Ik with cathode bias………………100 mA with fixed bias……………70 mA Direct Interelectrode Capacitances input……………9PF output……………4.3PF grid to plate……………15PF Static parameter Ua……………………300V -Ug………………… 60V Ia……………………60mA Gm……………………5.5mA/V ri……………………0.7 KΩ u ……………………3.85 Pout…………………6.6W ROHS Compliant Good quality tubes Test and selected by factory 3months quality warranty from date of receipt.
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