All KR Audio vacuum tubes possess a vacuum of 10-8 Torr, a maximum grid current of 2.0 microampere and absolutely constant emission over the life of the tube and are warranted for one year from purchase date!

 

KR ENTERPRISE 300B Balloon

The 300B Balloon is a low frequency, high power triode tube. 300B Balloon is capable of producing 10-20 watts of pure class A power.
Specification Value
Pure Class-A Power (watts) 10-20
Plate Voltage Average (Volts) 450
Plate Voltage Maximum (Volts) 550
Plate Current Average (mA) 100
Plate Current Maximum (mA) 140
Plate Dissipation (watts) 65
Transconductance (mA/V) 4.8
Grid Voltage -95
Amplification Factor 3.6
Plate Resistance (ohms)  
Load Resistance (ohms)  
THD (%) <0.1
Power Output (watts)  
Filament Voltage (volts DC/AC) 5
Filament Current (A) 1.9

KR Type

RPM Order code

Price EUR / matched pair, includes VAT 22%

300B Balloon

300B-B

580,00

 

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