822

Taylor rugged medium-mu power triode for Class B audio and RF service. Approximately 200 W plate dissipation supports several hundred watts of Class C RF output or about a kilowatt from a two-tube Class B audio stage.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: JUMBO4B
Base pins: -
Nominal heater: 10 V / 4 A

Description

Taylor 822 is a rugged 200-watt power triode designed for Class B audio and RF service below 8 MHz, with published operation up to 1000 watts audio output from two tubes.

Socket description

Super Jumbo 4-pin bayonet

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: JUMBO4B
Base pins: -
Nominal heater voltage: 10 V
Nominal heater current: 4 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 5200 Ω
Transconductance: 0.0054 S
Amplification factor: 27
Max plate voltage: 2500 V
Max plate dissipation: 200 W
Max cathode current: 300 mA

Published maximum ratings and characteristics promoted from the approved datasheet; mode-specific values preserved as parameters.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

193X Taylor Transmitting

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Filament Voltage
10 V
Nominal published value
Filament Current
4 A
Nominal published value
Maximum Operating Plate Voltage
2500 V
Class C oscillator / RF power-amplifier service where published
Maximum Plate Dissipation
200 W
Published maximum rating

Characteristics

Plate Resistance
5200 ohm
Published general characteristic
Mutual Conductance
5400 µS
Published general characteristic
Amplification Factor
27
Published general characteristic

Data set 02

1940 Taylor Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum plate current
300 mA
ClassC Telegraphy
Maximum grid current
60 mA
ClassC Telegraphy
Power output
600 W
ClassC Telegraphy PlateVoltage=2500V
Power output
1000 W
ClassB TwoTubes PlateVoltage=3000V