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Voltage - Triode (single) ·Triode

3B200B

3B200B triode for general electronic amplification. Available source material does not establish a narrower functional application confidently.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B4
Base pins
4
Nominal heater
6 V / 1.1 A

Description

3B200B is a triode described in the Standard Valves datasheet. The source provides construction, electrical constants, limiting conditions, and operating information.

Socket description

European 4-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B4
Base pins
4
Nominal heater voltage
6 V
Nominal heater current
1.1 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
5000 Ω
Transconductance
0.005 S
Amplification factor
25
Max plate voltage
600 V
Max plate dissipation
20 W
Max cathode current
135 mA

Published triode ratings/characteristics promoted from the approved datasheet.

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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Grid-anode capacitance

    9.9 pF

    Direct inter-electrode capacitance

  • Grid-filament capacitance

    7.5 pF

    Direct inter-electrode capacitance

  • Anode-filament capacitance

    5.7 pF

    Direct inter-electrode capacitance