Brand new TJ Fullmusic Vacuum tube
Item No.: 300B
Solid plate, gold plated brass pins, ceramic tube base
The price is for 1PC
Nominal operating conditions and parameters
Filament voltage……………………5V
Nominal filament current…………1.2A
Plate voltage………………………300V
Grid voltage………………………-58V
Plate current………………………60mA
Amplification factor…………………3.85
Grid to plate transconductance…… 5.7mA /V
Grid current……………………………0.05 μ A
Plate resistance………………………700 ohms
Limiting Operation Conditions for Safe Nor simultaneous ratings
Maximum plate voltage…………………………………………………450 volts
Maximum plate dissipation……………………………………………40 watts
Maximum plate current of average tube for fixed gird bias…………70mA
Maximum plate current of manually adjusted gird or self-biasing circuit…100mA
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