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CV8237 Pinout
basing pinout

 
CV8237 Substitutes
Close or identical 6X4, CV493, CV8203, CV8223, 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.

 
CV8237 Ratings
Vh
V		 Ih
A
6.3 0.6

 
CV8237 Application Data
Class RMSin
V		 Irect
mA		 Cout
uF		 Rser
Ω
FW rectifier 325-0-325 70 40 525

 
CV8237 Data sheet links
Peter Millett 6X4: Acrobat PDF 499K  12X4: Acrobat PDF 25K
The Valve Museum 6X4: html2  EZ90: html
oldradio.qrz.ru EZ90: MK buizen handboek
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

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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