NJ7P SQL Tube Database Query

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1E7G
Twin Power Pentode

EIA Base & Outline

Application

Source ........................................ RCA RC-15 - 1947
Glass octal type used in push-pull output stage of battery-operated receivers. Requires an octal socket.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... ST-12
Base Type ..................................... Octal
EIA Outline ................................... 12-7
EIA Base ...................................... 8C

Electrical Data

Source ........................................ RCA RC-15 - 1947
Filament Voltage .............................. 2.0 DC V
Filament Current .............................. 0.24 A

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 135 V
Grid No. 1 Voltage ............................ -7.5 V
Plate Current ................................. 10.5 mA
Grid No. 2 Current ............................ 3.5 mA
Load Resistance ............................... 24K Ω
Power Output (approx) ......................... 0.575 W

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Sat, 25 Jun 2022 10:04:29 -0700