807 (vacuum tube)

807
Three 807s and an early 6L6,

Left, British Emitron brand 807
Second Left, Canadian Westinghouse brand 807
Second Right, Dutch Philips brand military 807/ATS25

Right, U.S. Mullard-B.V.A branded 6L6G
ClassificationBeam-power tetrode
ServiceClass-A amplifier, (single-ended)

Class-AB amplifier, (push–pull)

Class-C amplifier, (radio frequency)
Cathode
Cathode typeIndirectly heated
Heater voltage6.3
Heater current900 mA
Anode
Max dissipation Watts25 W
Max voltage600 V
Socket connections
American 5 Pin, (UY)

Pin 1, Heater
Pin 2, Screen grid, g2
Pin-3, Control grid, g1
Pin-4, Cathode-beam plates
Pin-5, Heater

Top cap, Anode/plate
Typical class-A amplifier operation
Anode voltage300 V, (600 V)
Anode current83 mA, (40-75 mA)
Screen voltage250 V, (300 V)
Bias voltage-12.5 V, (-29.5 V)
Anode resistance24 kΩ
Typical class-C amplifier operation
Power output24 W, (plate dissipation = 16.5 W max)
Anode voltage475 V
Anode current83 mA
Screen voltage300 V (screen dissipation = 2.5 W max)
Bias voltage-50 V
Typical class-AB amplifier operation
(Values are for two tubes)
Anode voltage400 V (AB1), 600 V (AB2)
Anode current90-119 mA (AB1), 90-240 mA (AB2),(zero to max signal)
Screen voltage300 V (AB1), 300 V (AB2)
Bias voltage-45 V (AB1), -25--30 V (AB2)
References
Philips Valve Data Book, Philips Electrical Industries, 69-73 Clarence Street, Sydney, Radio Valve Application Division, 1958
Radio Valve Data, Eighth Ed. Iliffe Books Ltd., London, 1966
807 tube pinout diagram

The 807 is a beam tetrode vacuum tube, widely used in audio- and radio-frequency power amplifier applications.