NJ7P SQL Tube Database Query

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14E7
Twin Diode - Remote-Cutoff Pentode

EIA Base & Outline

EIA Base: 8AEEIA Bulb: 9-30
Source ........................................ ARRL HB -1947

Mechanical Data

Bulb .......................................... T-9
Base Type ..................................... Lock-in 8-Pin
EIA Outline ................................... 9-30
EIA Base ...................................... 8AE

Electrical Data

Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.15 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 330 Ω
Plate Resistance (approx) ..................... 700K Ω
Transconductance .............................. 1300 µMho
Plate Current ................................. 7.5 mA
Grid No. 2 Current ............................ 1.6 mA

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This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

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Tube Manual Index from NJ7P

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Wed, 29 Mar 2023 00:18:49 -0700