NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

1LN5
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 7AOEIA Bulb: 9-30

Substitute Data

Preferred Substitutes ......................... 1LG5
Substitutes ................................... 1LC5
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Glass lock-in type used as rf or if amplifier in battery-operated receivers. Requires lock-in 8-contact socket.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... T-9
Base Type ..................................... Lock-In 8-Pin
EIA Outline ................................... 9-30
EIA Base ...................................... 7AO
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-15 - 1947
Filament Voltage .............................. 1.4 DC V
Filament Current .............................. 0.05 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-15 - 1947
Input ......................................... 3 pf
Output ........................................ 8 pf
Grid to Plate ................................. 0.007 pf

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 1.1M Ω
Transconductance .............................. 800 µMho
Plate Current ................................. 1.6 mA
Grid No. 2 Current ............................ 0.35 mA

A horizontal ribbon.

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A horizontal ribbon.

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Thu, 18 Aug 2022 01:26:12 -0700