NJ7P SQL Tube Database Query

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3C5GT
Power Output Pentode

EIA Base & Outline

Mechanical Data

Source ........................................ ARRL HB - 1947
EIA Outline ................................... 9-12
EIA Base ...................................... 7AQ

Electrical Data

Source ........................................ ARRL HB - 1947
Filament Voltage .............................. 1.4/2.8 DC V
Filament Current .............................. 0.1/.05 A

Characteristics and Typical Operation

Class A Amplifier (1.4)
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ -9.0 V
Transconductance .............................. 1550 µ
Plate Current ................................. 6.0 mA
Grid No. 2 Current ............................ 1.4 mA
Load Resistance ............................... 8K Ω
Power Output (approx) ......................... 0.24 W

Class A Amplifier (2.8)
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ -9.0 V
Transconductance .............................. 1450 µ
Plate Current ................................. 6.0 mA
Grid No. 2 Current ............................ 1.4 mA
Load Resistance ............................... 10K Ω
Power Output (approx) ......................... 0.26 W

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, 30 Jun 2022 14:47:20 -0700