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 PX25

The PX25 is an ultra-linear, low frequency, high power triode tube capable of producing 6-10 watts of pure class-A power. A replica of the early PX25, this tube is available in both a UX4 base and the original 4 pin English base.

Unique features of the PX25 include: a higher than usual gain and a 4 volt filament.

The PX25 may just be the best of both worlds, i.e. the clear and pristine midrange of a 2A3 or 45 tube along with the bass and dynamics of a 300B. The PX25 can also function as a great driver tube for the T-200 or T-1610 tubes.

Specification Value
Pure Class-A Power (watts) 6-10
Plate Voltage Average (Volts) 325
Plate Voltage Maximum (Volts) 400
Plate Current Average (mA) 40
Plate Current Maximum (mA) 80
Plate Dissipation (watts) 30
Transconductance (mA/V) 6.0
Grid Voltage -25
Amplification Factor 4.2
Plate Resistance (ohms) 600
Load Resistance (ohms) 2500
THD (%) <0.05
Power Output (watts) 6.5
Filament Voltage (volts DC/AC) 4
Filament Current (A) 2

KR Type

RPM Order code

Price EUR/matched pair, includes VAT 22%

PX25

KR-PX25

610,00

 

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