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)

Catalog results

Browse all tubes and open a row to inspect its sections.

1 tubes found

Sort results

UEL71
Other (under review)Pentode-TetrodeDissimilar
PDF Google eBay
Base
—
Socket code
B8G
Sections
2
Heater
45 V / 100 mA
Plate
S2: 250 V
Screen
S2: 250 V
rP
S2: 70,000 Ω
gm
S2: 6.5 mA/V
B8G - Loctal 8-contact
Tetrode-output pentode combination designed for detector and audio-output service, integrating radio signal detection with loudspeaker-driving power amplification.
Designed For Radio Reception Detector Audio Output Named For Audio Output
Source PDFs (2)
- 1955 Lorenz (opens in a new tab)
- 9999 Mixed D 2000 (opens in a new tab)

Electrical Summary

General Summary

UEL71

Other (under review)Pentode-TetrodeDissimilar

Heater	45 V / 100 mA
Plate	S2: 250 V
Screen	S2: 250 V
rP	S2: 70,000 Ω
gm	S2: 6.5 mA/V

B8G - Loctal 8-contact

Tetrode-output pentode combination designed for detector and audio-output service, integrating radio signal detection with loudspeaker-driving power amplification.

Designed For Radio Reception Detector Audio Output Named For Audio Output

Showing 1-1 of1 tubes

Electronic tube and vacuum tube catalog

Catalog results