NJ7P SQL Tube Database Query

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5798
Medium-Mu Twin Triode

EIA Base & Outline

Application

Subminiature type used as general purpose amplifier of subminiature equipment. Requires either a subminiature socket or direct soldering of the wires from the tube to circuit components.

Mechanical Data

EIA Outline ................................... 3-2
EIA Base ...................................... 8CZ

Electrical Data

Heater Voltage ................................ 26.5 V
Heater Current ................................ 0.09 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 1.9 pf
Output ........................................ 1.7 pf
Grid to Plate ................................. 1.7 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 50 V
Plate Dissipation ............................. 0.2 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 26.5 V
Grid No. 1 Voltage ............................ -0 V
Amplification Factor .......................... 24
Plate Resistance (approx) ..................... 7100 Ω
Transconductance .............................. 3400 µ
Plate Current ................................. 2.0 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 00:31:46 -0700