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5677

5677 directly heated 1.25 V 60 mA subminiature medium-mu triode for low-power voltage amplification, with mu 13.5 and gm 0.65 mA/V.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 5677
Socket code: B5D
Base pins: 5
Nominal heater: 1.25 V / 60 mA

Description

Directly heated subminiature medium-mu triode for Class A amplifier service.

Socket description

Subminiature wire-ended

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 5677
Socket code: B5D
Base pins: 5
Nominal heater voltage: 1.25 V
Nominal heater current: 60 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

5677 - 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: 0.00065 S
Amplification factor: 13.5
Max plate voltage: 135 V

GE Essential Characteristics 5677 directly heated subminiature triode, 1.25 V 0.06 A filament, maximum plate 135 V. Typical Class A at plate 135 V, grid -6 V, Ia 1.9 mA, gm 0.00065 A/V, mu 13.5. Direct capacitances input 1.3 pF, output 3.8 pF, grid-plate 2.0 pF. No verified plate resistance or maximum dissipation.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

Input Capacitance
1.3 pF
Output Capacitance
3.8 pF
Grid-to-Plate Capacitance
2 pF

Other

Plate Voltage
135 V
ClassA
Grid Voltage
-6 V
ClassA
Plate Current
1.9 mA
ClassA