NJ7P SQL Tube Database Query

Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.

117N7GT
Rectifier - Beam Power Tube

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 117P7
Source ........................................ RCA RC-15 - 1947

Application

Glass octal type used as combined half-wave rectifier and output ampifier in ac/dc receivers. Requires octal socket.

Mechanical Data

Bulb .......................................... T-9
EIA Outline ................................... 9-15
EIA Base ...................................... 8AV

Electrical Data

Heater Voltage ................................ 117 V
Heater Current ................................ 0.09 A

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 117 V
Grid No. 2 Voltage ............................ 117 V
Plate Dissipation ............................. 5.5 W
Grid No. 2 Dissipation ........................ 1.0 W

Diode
Peak Inverse Plate Voltage .................... 350 V

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -6 V
Plate Resistance (approx) ..................... 16K Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 51 mA
Grid No. 2 Current ............................ 5 mA
Load Resistance ............................... 3K Ω
Power Output (approx) ......................... 1.2 W

Rectifier
Output Voltage ................................ 117 V
Output Current ................................ 75 mA

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

Wed, 29 Mar 2023 06:41:12 -0700