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8334

Ruggedized high-reliability receiving triode manufactured and tested to military requirements for severe vibration, shock, altitude, and acceleration.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: E7-1
Socket code: B7G
Base pins: 7
Nominal heater: 6.3 V / 225 mA

Description

Ruggedized high-reliability receiving triode manufactured and tested to MIL-E-1 requirements for severe vibration, shock, altitude, and acceleration.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: E7-1
Socket code: B7G
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 225 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

E7-1 - 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: 5116.279069767443 Ω
Transconductance: 0.01075 S
Amplification factor: 55
Max plate voltage: 330 V
Max plate dissipation: 4.4 W

Published source values promoted where applicable.

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

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Amplification factor
55
Average published amplification factor
Transconductance
10750 uS
Average published transconductance
Heater current
225 mA
Published heater current
Heater voltage
6.3 V
Heater voltage ................. 6.3 Volts
a Maximum Heater-Cathode voltage
100 V
a Maximum Heater-Cathode voltage ......... 100 Volts

Other

Maximum plate dissipation
4.4 W
Published maximum plate dissipation
Maximum plate/anode voltage
330 V
Published maximum plate/anode voltage
Plate Dissipation
4.4 W
Plate Dissipation ........... 4.4 Watts