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4EJ7 Pinout
basing pinout

 

4EJ7 Substitutes
Different filament voltage 3EJ7, 6EJ7, EF184

Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application.

 

4EJ7 Ratings

No information available

4EJ7 Application Data
Class Va Vg2 Vg1 Ia Ig2 Ra S
A 200 200 -2.5 10.0 4.1 350,000 15.0

 

4EJ7 Data sheet links
Duncan''s Amp Pages EF184: Acrobat PDF (6 pages)
Peter Millett 4EJ7: Acrobat PDF 22K  3EJ7: Acrobat PDF 21K  6EJ7: Acrobat PDF 48K
National Valve Museum EF184: html, html2
oldradio.qrz.ru 6EJ7: MK buizen handboek  EF184: html page, MAZDA Valves & Picture Tubes Data
Frank Philipse 4EJ7: 035/4/4EJ7.pdf  3EJ7: 035/3/3EJ7.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) 4EJ7: 4EH7.pdf (44720 bytes), 4EJ7.pdf (170899 bytes), 4EJ7.pdf (224380 bytes), 6EA8.pdf (574278 bytes), 6EJ7.pdf (90038 bytes)  3EJ7: 3EJ7.pdf (163881 bytes), 3EJ7.pdf (231124 bytes), 3EJ7.pdf (43282 bytes)  6EJ7: 6EJ7.pdf (221632 bytes), 6EJ7.pdf (60159 bytes)  EF184: EF184.pdf (216304 bytes), EF184.pdf (468233 bytes) (fr), EF184.pdf (587822 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 4EJ7: 4EH7.pdf (44720 bytes), 4EJ7.pdf (170899 bytes), 4EJ7.pdf (224380 bytes), 6EA8.pdf (574278 bytes), 6EJ7.pdf (90038 bytes)  3EJ7: 3EJ7.pdf (163881 bytes), 3EJ7.pdf (231124 bytes), 3EJ7.pdf (43282 bytes)  6EJ7: 6EJ7.pdf (221632 bytes), 6EJ7.pdf (60159 bytes)  EF184: EF184.pdf (216304 bytes), EF184.pdf (468233 bytes) (fr), EF184.pdf (587822 bytes)

Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Please see the substitutes at the top of the page for more details

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