Electronic Tube & Vacuum Tube Catalog

Plate Resistance: rp

Transconductance: gm (mA/V)

Amplification Factor: μ

Maximum Plate Voltage: Va(max)

Maximum Plate Dissipation: Pa(max)

Maximum Screen Voltage: Vs(max)

Rectifier Nominal Output Current: I(DC)

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8661
Power - Tetrode (NOT beam) (over 1000V 100W)BeamPowerDirectly heated
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Socket code
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Electrical Summary
Heater 7.5 V / 75 A
Plate 7,500 V / 10,000 W
Screen 1,500 V / 250 W
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Liquid-cooled ceramic-metal power tetrode for high-power audio and RF service, particularly modulators and linear amplifiers, with approximately 10 kW plate dissipation.
Named For Audio Output RF Power Amplifier RF Power Tube
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Electrical Summary

General Summary

8661

Power - Tetrode (NOT beam) (over 1000V 100W)BeamPowerDirectly heated

Heater	7.5 V / 75 A
Plate	7,500 V / 10,000 W
Screen	1,500 V / 250 W

Liquid-cooled ceramic-metal power tetrode for high-power audio and RF service, particularly modulators and linear amplifiers, with approximately 10 kW plate dissipation.

Named For Audio Output RF Power Amplifier RF Power Tube

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