NJ7P SQL Tube Database Query

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6EA5
Sharp-Cutoff Tetrode

EIA Base & Outline

EIA Base: 7EWEIA Bulb: 5-2

Substitute Data

Preferred Substitutes ......................... 6EV5
Substitutes ................................... 6FV6
Source ........................................ ARRL HB - 1964

Mechanical Data

Source ........................................ ARRL HB - 1964
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7EW
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.2 A

Direct Interelectrode Capacitances (approx)

Tetrode
Source ........................................ ARRL HB - 1964
Input ......................................... 4.5 pf
Output ........................................ 3.0 pf
Grid to Plate ................................. 0.05 pf

Maximum Ratings (Design Center Values)

Tetrode
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Plate Dissipation ............................. 3.25 W
Grid No. 2 Dissipation ........................ 0.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 140 V
Grid No. 1 Voltage ............................ -1.0 V
Plate Resistance (approx) ..................... 150K Ω
Transconductance .............................. 8000 µMho
Plate Current ................................. 10 mA
Grid No. 2 Current ............................ 0.95 mA

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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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Complete Tube Manuals:
Tube Manual Index from NJ7P

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Thu, 30 Jun 2022 04:09:42 -0700