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Voltage - Triode (single) ·Triode

482B

Directly heated power-amplifier triode, co-designated with 182B, providing about 1.35 watts Class-A output in published operation.

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

Description

Co-designation of the 182B power amplifier triode on the supplied Sylvania sheet.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
D
Socket code
-
Base pins
4
Nominal heater voltage
5 V
Nominal heater current
1.25 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

D - 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
2500 Ω
Transconductance
0.002 S
Amplification factor
5
Max plate voltage
250 V

Promoted from printed maximum-rating/characteristic columns; additional published values retained in TUBE_SECTION_PARAMETER.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Resistance

    2500 ohm

  • Transconductance

    2000 µS

  • Amplification Factor

    5

Other

  • Plate Voltage

    250 V

  • Grid Voltage

    -35 V

  • Plate Current

    20 mA

  • Load Impedance

    4500 ohm

  • Power Output

    1.35 W

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    250 V

    ClassA