NJ7P SQL Tube Database Query

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6S7
Remote-Cutoff Pentode

EIA Base & Outline

EIA Base: 7REIA Bulb: 8-2

Substitute Data

Preferred Substitutes ......................... 6K7
Substitutes ................................... 6S7 6U7 6W7
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Glass octal type used in rf and if stages of automobile receivers employing avc. Requires octal socket and may be mountd in any position.

Source ........................................ RCA RC-15 - 1947
Metal type used in rf and if stages of automobile receivers employing avc. Requires octal socket and may be mountd in any position.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... MT-8
EIA Outline ................................... 8-2
EIA Base ...................................... 7R

Electrical Data

Source ........................................ RCA RC-15 - 1947
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.15 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 100 V
Positive Grid No. 1 Voltage ................... 0 V
Plate Dissipation ............................. 2.5 W
Grid No. 2 Dissipation ........................ 0.25 W
Grid No. 1 Circuit Resistance
Self Bias .................................. Ω
Bulb Temperature (At Hottest Point) ........... °C

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -3 V
Plate Resistance (approx) ..................... 1M Ω
Transconductance .............................. 1750 µMho
Plate Current ................................. 8.5 mA
Grid No. 2 Current ............................ 2 mA

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Tue, 04 Oct 2022 18:40:33 -0700