NJ7P SQL Tube Database Query

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12BH7
Medium-Mu Twin Triode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 12DW7
Substitutes ................................... 12AU7 12AZ7
Source ........................................ Sylvania - 1959

Application

Source ........................................ Sylvania - 1959
Miniature type used as combined vertical-deflection amplifier and oscillator, and as horizontal-deflection oscillator in tv receivers and in phase-inverter and multivibrator circuits. Requires miniature 9-contact socket.

Mechanical Data

Source ........................................ Sylvania - 1959
Bulb .......................................... T-6 1/2
Base Type ..................................... Small Button 9-Pin
EIA Outline ................................... 6-3
EIA Base ...................................... 9A
Mounting Position ............................. Any

Electrical Data

Source ........................................ Sylvania - 1959
Heater Voltage ................................ 6.3/12.6 V
Heater Current ................................ 0.6/0.3 A

Source ........................................ Sylvania - 1959
For other characteristics and typical operation, see 12BH7A

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 19:05:47 -0700