NJ7P SQL Tube Database Query

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956
Remote-Cutoff Pentode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 4-3
EIA Base ...................................... 5BB

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.15 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 3.1 pf
Output ........................................ 2.5 pf
Grid to Plate ................................. 0.009 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Plate Dissipation ............................. 1.7 W
Grid No. 2 Dissipation ........................ 0.3 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -3 V
Plate Resistance (approx) ..................... 700K Ω
Transconductance .............................. 1800 µ
Plate Current ................................. 6.7 mA
Grid No. 2 Current ............................ 2.7 mA

Mixer Oscillator Inj=7V Min
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -10 V

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 Mar 2023 18:45:13 -0700