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Power - Triode ·Triode

801

Transmitting power triode intended for RF amplifier and oscillator service, with manufacturer ratings emphasizing radio-frequency output, substantial plate loading, and professional transmitter operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater
7.5 V / 1.25 A

Description

Transmitting triode for RF and audio-frequency power amplification and oscillation.

Socket description

Medium 4-contact bayonet base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater voltage
7.5 V
Nominal heater current
1.25 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
Transconductance
0.00184 S
Amplification factor
8
Max plate voltage
600 V
Max plate dissipation
20 W

Published ratings and characteristics from source sheet.

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

1938 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • provides for operation at full rating at frequencies as high as

    60 MHz

    provides for operation at full rating at frequencies as high as 60 megacycles.

  • D-C Plate Voltage

    600 V

    D-C Plate Voltage ... 600 max. Volts

  • Plate Dissipation

    20 W

    Plate Dissipation .... 20 max. Watts

  • D-C Plate Voltage.. 425 500

    600 V

    D-C Plate Voltage.. 425 500 600 Volts

  • D-C Plate Current ... 18 24

    30 mA

    D-C Plate Current ... 18 24 30 Milliamperes

  • D-C Plate Voltage --- 400 500

    600 V

    D-C Plate Voltage --- 400 500 600 Volts

  • Peak A-F Grid-to-Grid Voltage .. 270 290

    320 V

    Peak A-F Grid-to-Grid Voltage .. 270 290 320 Volts

  • Load Resistance (Per tube) .. 1500 2000

    2500 Ω

    Load Resistance (Per tube) .. 1500 2000 2500 Ohms

  • Effective Load Res. (Plate-to-plate).- 6000 8000

    10000 Ω

    Effective Load Res. (Plate-to-plate).- 6000 8000 10000 Ohms

  • Max.-Sig. Driving Power (Approx.) 3 3

    3 W

    Max.-Sig. Driving Power (Approx.) 3 3 3 Watts

  • Max.- Sig. Power Output (Approx.) 27 36

    45 W

    Max.- Sig. Power Output (Approx.) 27 36 45 Watts

  • D-C Plate Voltage

    600 V

    D-C Plate Voltage .. 600 max. Volts

  • D-C Plate Voltage ..... 500

    600 V

    D-C Plate Voltage ..... 500 600 Volts

  • D-C Plate Current .... 45

    45 mA

    D-C Plate Current .... 45 45 Milliamperes

  • D-C Plate Current

    60 mA

    D-C Plate Current. 60 max. Milliamperes

  • D'C Plate Voltage ....... 400

    500 V

    D'C Plate Voltage ....... 400 500 Volts

  • D'O Plate Current . 55

    55 mA

    D'O Plate Current . 55 55 Milliamperes

  • Driving Power (Approx ) .. 4

    4.5 W

    Driving Power (Approx ) .. 4 4.5 Watts

  • Power Output (Approx.) . 14

    18 W

    Power Output (Approx.) . 14 18 Watts

  • D-C Grid Current

    15 mA

    D-C Grid Current.. 15 max. Milliamperes

  • D-C Grid Current (Approx.) - 15

    15 mA

    D-C Grid Current (Approx.) - 15 15 Milliamperes

  • each stated value of grid voltage should be decreased by

    5 V

    each stated value of grid voltage should be decreased by 5 volts and the circuit returns made to the

  • should not exceed

    100 Ω

    should not exceed 100,000 ohms.

  • For high-frequency operation above

    60 MHz

    For high-frequency operation above 60 megacycles, see page 144.