NJ7P SQL Tube Database Query

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6900
Medium-Mu Twin Triode

EIA Base & Outline

Mechanical Data

EIA Outline ................................... 6-3
EIA Base ...................................... 9H

Electrical Data

Heater Voltage ................................ 12.6/6.3 V
Heater Current ................................ 0.5/1.0 A

Direct Interelectrode Capacitances (approx)

Triode 1
Input ......................................... 6.5 pf
Output ........................................ 0.8 pf
Grid to Plate ................................. 4.0 pf

Triode 2
Input ......................................... 6.5 pf
Output ........................................ 0.6 pf
Grid to Plate ................................. 4.0 pf

Maximum Ratings (Design Center Values)

Triode 1
Plate Voltage ................................. 600 V
Plate Dissipation ............................. 4.25 W

Triode 2
Plate Voltage ................................. 600 V
Plate Dissipation ............................. 4.25 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 120 V
Grid No. 1 Voltage ............................ -2.0 V
Amplification Factor .......................... 18.5
Plate Resistance (approx) ..................... 1600 Ω
Transconductance .............................. 11.5K µ
Plate Current ................................. 36 mA

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

Fri, 03 Feb 2023 00:17:08 -0700