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. The PX25 possesses a vacuum of 10-8 Torr, a maximum grid current of 2.0 microamperes and absolutely constant emission over the life of the tubes. All KR Enterprise tubes are warranted for a period of 2 years.

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