NJ7P SQL Tube Database Query

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12BT6
Twin Diode-High-Mu Triode

EIA Base & Outline

EIA Base: 7BTEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 12AT6 12BK6
Substitutes ................................... 12AV6

Mechanical Data

EIA Outline ................................... 5-2
EIA Base ...................................... 7BT

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. 1 Voltage ............................ -3 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 58K Ω
Transconductance .............................. 1200 µMho
Plate Current ................................. 1 mA

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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.

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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.

Other Tube Search Engines:
Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

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

Tue, 04 Oct 2022 16:31:41 -0700