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6X4 Pinout
basing pinout

 

6X4 Substitutes
Close or identical CV493, CV8203, CV8223, CV8237, EZ90, U78
Different rating or performance 6063
Different filament voltage 12X4

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.

 

6X4 Ratings
Vh Ih
6.3 0.6

 

6X4 Application Data
Class RMSin Irect Cout Rser
FW rectifier 325-0-325 70 40 525

 

6X4 Data sheet links
Peter Millett 6X4: Acrobat PDF 499K  12X4: Acrobat PDF 25K
National Valve Museum 6X4: html, html2
oldradio.qrz.ru 6X4: MK buizen handboek
Frank Philipse 6X4: .gif file, 137/6/6X4.pdf, Acrobat PDF  U78: 126/u/U78.pdf  6063: 062/e/E90Z.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) 6X4: 6V6.pdf (565224 bytes), 6X4.pdf (145671 bytes), 6X4.pdf (376421 bytes), 6X4.pdf (47067 bytes), 6X4.pdf (486681 bytes), 6X4.pdf (551501 bytes)  U78: U78.pdf (118422 bytes)  6063: 6063.pdf (60980 bytes)  12X4: 12W6GT.pdf (35806 bytes), 12X4.pdf (148549 bytes), 12X4.pdf (56806 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 6X4: 6V6.pdf (565224 bytes), 6X4.pdf (145671 bytes), 6X4.pdf (376421 bytes), 6X4.pdf (47067 bytes), 6X4.pdf (486681 bytes), 6X4.pdf (551501 bytes)  U78: U78.pdf (118422 bytes)  6063: 6063.pdf (60980 bytes)  12X4: 12W6GT.pdf (35806 bytes), 12X4.pdf (148549 bytes), 12X4.pdf (56806 bytes)
TubeZone 6X4: pdf
Virtual Valve Museum 6X4: HTML page

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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