TUBE 4CX10,000D / 8171

The 4CX10,000D / 8171 is a ceramic/metal tetrode which is identical electrically to the 4CX5000A / 8170 except for its rated plate dissipation. Its increased dissipation capability, resulting from a larger cooler, is most useful in linear applications where plate dissipation is generally the limiting factor. The larger cooler also allows the 4CX10,000D / 8171 to be used in place of the 4CX5000A / 8170 with less cooling for any given plate dissipation, or results in cooler operation at any given air-flow rate. The 4CX10,000D / 8171 is useful as an oscillator, amplifier, or modulator at frequencies up to 110 megahertz and is particularly suited for use as a linear rf amplifier or class-AB1 audio amplifier. A pair of these tubes, operating class-AB1, will deliver more than 30 kilowatts of audio-frequency or radio-frequency plate output power.