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Home >> KR Audio >> Tubes >> KR 300B Balloon

KR 300B Balloon
MATCHED PAIR  $525.00

The KR300B is an ultra-linear, low frequency, high power triode tube capable of producing 15 watts of pure class-A power. This tube features a new ribbon filament construction and the KR Enterprise exclusive patent design with 32 cathodes. The KR300B possesses a vacuum of 10(-8) Torr, a maximum grid current of 2.0 microamperes and absolutely constant emission over the life of the tube. All KR Enterprise tubes are warranted for a period of 2 years.

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free cryo treatment
Free Cryogenics with
All Tube Purchases.

Specifications 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
 

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