300B-L 300BL Vacuum Tube Amplifier DIY kit(4PCS 300B-L)

Preamps
Improved 300B-L, WE three-mica column top sound process
The 300B-L tube is a direct-heated cathode medium-power triode for class A1 amplification, suitable for audio amplifiers with an output power of 10W.
Extreme Rating
Anode voltage............480V
Anode dissipation power............ 40W
Cathode current
Self-bias voltage ................................. 100 mA
Fixed bias voltage............ 70 mA
Interelectrode capacitance
Input capacitance................................9pF
Output capacitance................................4.3PF
Inter-circuit capacitance................................................15PF
Static parameter Ua.................................... 300V
-Ug 60V
60 mA
On-resistance 5.5 mA/V
Ri0.7
SEK 3.85
Buy 2 = a precision matched pair. Buy 4 = a precision matched quad.
Note: If you only buy 1 piece, there will be no gift box.