The 300B Triode Tubes from EAT! The EAT 300B Triode Tubes feature an amplification factor of 3.9, 5 Volt filament voltage and a dilament current of 1.25 Amps!
All EAT 300B's are available in quads. These quads are not entirely matched. However, because the 300B's have to pass through a rigorous test to meet EAT's high standards, all 300B quads are matched to very similar specifications.
Valve Type: 300B Triode
Amplification Factor: 3.9
Filament Voltage: 5 Volts
Filament current: 1.25 Amper
Cathode: Oxide, directly heated
Maximum Anode Dissipation: 36 W
Transconductance: 5 mA/V
Max. DC Anode Voltage: 450 V
Cooling of The Valve: Radiation
Measured Value If: 1.1 A