Product Overview
Free shipping to any EU Country and ship Worldwide
300BS Shuguang Tubes Factory Matched Pair
FACTORY MATCHED PAIR (2 matching 300BS-B tubes)
300B in vintage Globe-shape with Mesh-Plate.
Mesh plate coated with graphite, gold plated pins, grid wire and ceramic tube base
Specification
Filament voltage
Uf(DC): 5V
If(DC): 1.2A
Maximum ratings
Plate voltage: 480V
Plate dissipation power: 40W
Cathode current
For self-biasing voltage: 100 mA
For fixed-biasing voltage: 70 mA
Capacitances Input capacitance: 9PF
Output capacitance: 4.3PF
Muller capacitance: 15PF
DC parameters
Ua: 300V
-Ug: 60 V
Ia: 60mA
Gm: 5.5mA/V
Ri: 0.7 Kohm
u: 3.85
Pout: 6.6W