NJ7P SQL Tube Database Query

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25S
Twin Diode - Medium-Mu Triode

EIA Base & Outline

EIA Base: 6MEIA Bulb: 9-26 12-5

Mechanical Data

Bulb .......................................... T-9 or ST-12
EIA Outline ................................... 9-26 12-5
EIA Base ...................................... 6M

Electrical Data

Filament Voltage .............................. 2 DC V
Filament Current .............................. 0.06 A

Direct Interelectrode Capacitances (approx)

1.6
Input ......................................... 1.9 pf
Output ........................................ 3.6 pf
Grid to Plate ................................. pf

Maximum Ratings (Design Center Values)

135
Plate Voltage ................................. V
Grid No. 3 Voltage ............................ V
Grid No. 2 Supply Voltage ..................... V
Grid No. 2 Voltage ............................ V
Negative Grid No. 1 Voltage ................... V
Positive Grid No. 1 Voltage ................... V
Plate Input ................................... W
Plate Dissipation ............................. W
Grid No. 2 Dissipation ........................ W
Cathode Current ............................... mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. Ω
Self Bias .................................. Ω
Bulb Temperature (At Hottest Point) ........... °C

For other characteristics and typical operation, see 1H6G

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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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Mon, 04 Jul 2022 18:22:07 -0700