Electronic Tube & Vacuum Tube Catalog

Plate Resistance: rp

Transconductance: gm (mA/V)

Amplification Factor: μ

Maximum Plate Voltage: Va(max)

Maximum Plate Dissipation: Pa(max)

Maximum Screen Voltage: Vs(max)

Rectifier Nominal Output Current: I(DC)

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EEL71
Voltage - Tetrode Pentode-TetrodeDissimilar
PDF Google eBay
Base
—
Socket code
B8G
Sections
2
Heater
6.3 V / 750 mA
Plate
S2: 250 V
Screen
S2: 250 V
Ik max
S2: 70 mA
gm
S2: 6.5 mA/V
8 pins - B8G - Loctal 8-contact
Combined tetrode and output-pentode tube for detector, AF preamplifier, and audio-output service. Its power pentode section gives the tube a clear output-stage function.
Named For Audio Output Power Pentode
Source PDFs (2)
- 1955 Lorenz (opens in a new tab)
- 9999 Mixed I 1000 (opens in a new tab)

Electrical Summary

General Summary

EEL71

Voltage - Tetrode Pentode-TetrodeDissimilar

Heater	6.3 V / 750 mA
Plate	S2: 250 V
Screen	S2: 250 V
Ik max	S2: 70 mA
gm	S2: 6.5 mA/V

8 pins - B8G - Loctal 8-contact

Combined tetrode and output-pentode tube for detector, AF preamplifier, and audio-output service. Its power pentode section gives the tube a clear output-stage function.

Named For Audio Output Power Pentode

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