NJ7P SQL Tube Database Query

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5967
Medium-Mu Twin Triode

EIA Base & Outline

Application

Subminiature type used as a general purpose amplifier in subminiature equipment. Requires either a subminiature socket or direct soldering of the wires from the tube to circuit components.

Mechanical Data

EIA Outline ................................... 3-8
EIA Base ...................................... 8DQ

Electrical Data

Filament Voltage .............................. 1.25 V
Filament Current .............................. 0.12 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 0.9 pf
Output ........................................ 0.9 pf
Grid to Plate ................................. 1.7 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 50 V

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 45 V
Grid No. 1 Voltage ............................ 0 V
Amplification Factor .......................... 17
Plate Resistance (approx) ..................... 8500 Ω
Transconductance .............................. 2000 µ
Plate Current ................................. 3.0 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

Thu, 30 Jun 2022 03:37:38 -0700