NJ7P SQL Tube Database Query

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3GP1
Electrostatic CRT

EIA Base & Outline

EIA Base: 11A
Source ........................................ ARRL HB - 1946

Mechanical Data

Source ........................................ ARRL HB - 1946
EIA Base ...................................... 11A

General Data

Source ........................................ ARRL HB - 1946
Focusing Method ............................... ARRL HB - 1946
Deflecting Method ............................. Electrostatic
Deflecting Angle (approx) ..................... Electrostatic Deg.
Fluorescence ............................... P1
Phosphorescence ............................ Green
Faceplate ..................................... Medium

Electrical Data

Source ........................................ ARRL HB - 1946
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A

Characteristics and Typical Operation

Oscilloscope
Source ........................................ ARRL HB - 1946
Anode No. 2 Voltage ........................... 1500 V
Anode No. 1 Voltage ........................... 350 V
Grid No. 1 Voltage Required for Cutoff ........ -50 V
Deflection Factor
Deflecting Plates No. 1 & 2 ................... 120 V/In
Deflecting Plates No. 3 & 4 ................... 106 V/In

Oscilloscope
Source ........................................ ARRL HB - 1946
Anode No. 2 Voltage ........................... 1000 V
Anode No. 1 Voltage ........................... 234 V
Grid No. 1 Voltage Required for Cutoff ........ -33 V
Deflection Factor
Deflecting Plates No. 1 & 2 ................... 79 V/In
Deflecting Plates No. 3 & 4 ................... 70.5 V/In

Source ........................................ ARRL HB - 1946
For other characteristics and typical operation, see 3GP1

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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.

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Tue, 04 Oct 2022 15:13:23 -0700