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Preferred Substitutes ......................... 12AT7
Substitutes ................................... 12AZ7 12BH7
Source ........................................ RCA RC-15 - 1947
Source ........................................ RCA RC-15 - 1947
Miniature type used as phase inverters or push-pull amplifiers in ac/dc radio equipment and as multivibrators or oscillators in industrial control devices.
Source ........................................ RCA RC-15 - 1947
Also used as combined vertical oscillatora and vertical-deflection amplifiers, and as horizontal-deflection oscillators in tv receivers. requires miniature 9-contact socket.
Source ........................................ RCA RC-15 - 1947
Bulb .......................................... T-6 1/2
Base Type ..................................... Small Button 9-Pin
EIA Outline ................................... 6-2
EIA Base ...................................... 9A
Mounting Position ............................. Any
Source ........................................ RCA RC-15 - 1947
Heater Voltage ................................ 6.3/12.6 V
Heater Current ................................ 0.3/0.15 A
Triode 1
Source ........................................ RCA RC-15 - 1947
Input ......................................... 1.6 pf
Output ........................................ 0.5 pf
Grid to Plate ................................. 1.5 pf
Triode 2
Source ........................................ RCA RC-15 - 1947
Input ......................................... 1.6 pf
Output ........................................ 0.35 pf
Grid to Plate ................................. 1.5 pf
Triode 1
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 2.75 W
Triode 2
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 2.75 W
Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 100 V
Grid No. 1 Voltage ............................ 0 V
Amplification Factor .......................... 19.5
Plate Resistance (approx) ..................... 6.25K Ω
Transconductance .............................. 3100 µ
Plate Current ................................. 11.8 mA
Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -8.5 V
Amplification Factor .......................... 17
Plate Resistance (approx) ..................... 7.7K Ω
Transconductance .............................. 2200 µ
Plate Current ................................. 10.5 mA
Source ........................................ RCA RC-15 - 1947
For other characteristics and typical operation, see 12AU7A
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, 02 Feb 2023 05:14:59 -0700