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Voltage Tetrode ·Tetrode

MSGHA

Cossor screen-grid tetrode for receiving-equipment amplification, with manufacturer documentation covering construction, operating recommendations, and application data.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B5
Base pins
5
Nominal heater
-

Description

MSGHA: Cossor screen-grid tetrode. The complete Cossor sheet was read for construction, technical data, operating recommendations, and application notes.

Socket description

European 5-pin base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B5
Base pins
5
Nominal heater voltage
-
Nominal heater current
-
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

Tetrode

X-ray radiationInterelectrode capacitances
Amplification factor
10001
Max plate voltage
200 V
Max screen voltage
100 V

Published 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

1936 Cossor Valve Manual

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum anode voltage

    200 V

Characteristics

  • Intended service

    High-frequency amplifier

Data set 02

193X Cossor

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum Anode Voltage

    200 V

    Published technical-data value

  • Maximum Screen Voltage

    100 V

    Published technical-data value

Characteristics

  • Amplification Factor

    10001

    Published technical-data value