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Voltage - Triode (single) ·Triode

244A

Western Electric heater-cathode triode for professional amplification service. Available source material does not establish a narrower functional role confidently.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater
2 V / 1.6 A

Description

The Western Electric 244A is a triode listed in the supplied catalog table.

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
2 V
Nominal heater current
1.6 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
10000 Ω
Transconductance
0.00101 S
Amplification factor
10
Max plate voltage
200 V

Promoted fields mapped from published ratings/characteristics; additional published values preserved in parameter table.

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

1933 Western Electric Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate-grid capacitance

    3.3 pF

    Published direct interelectrode capacitance

  • Plate-cathode capacitance

    3.7 pF

    Published direct interelectrode capacitance

  • Grid-cathode capacitance

    3.8 pF

    Published direct interelectrode capacitance

Data set 02

1956 Western Electric Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Maximum/Typical Power Output

    0.049 W

    Catalog-table value

Other

  • Maximum Plate Voltage

    200 V

    Catalog-table value

Data set 03

2026 Western Electric 200s

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage

    2 Volt

    Heater Voltage 2 Volts, AC or DC

  • Average Heater Current

    1.6 Amperes

    Average Heater Current 1.6 Amperes

  • Average Plate Current

    5.5 amperes

    Average Plate Current 5.5 6.0 Alilliamperes

  • Average Plate Resistance

    10000 Ohms

    Average Plate Resistance.... 10,000 10,000 Ohms

  • Average Amplification Factor

    10

    Average Amplification Factor 10.0 9.7

  • Heater voltage

    2 volt

    Heater voltage 2.0 volts, a.c. or d.c.

  • Nominal heater current

    1.6 amperes

    Nominal heater current 1.6 amperes

  • included within the area, ABCD, in Figure

    3

    included within the area, ABCD, in Figure 3. Amplification factor, plate resistance, transconduc

  • The level of the third harmonic in the

    244

    The level of the third harmonic in the 244A tube is usually low and may diflFer widely in individual

  • Microphonic and Sputter Noise—With a plate voltage of

    135 volt

    Microphonic and Sputter Noise—With a plate voltage of 135 volts, a grid bias of —6 volts,

  • and a load resistance of

    100000 ohms

    and a load resistance of 100,000 ohms, the mean microphonic noise output level of the 244A tube,

Other

  • Plate Voltage

    135 Volt

    Plate Voltage 135 180 Volts Maximum