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5U4-GB Pinout
basing pinout

 

5U4-GB Substitutes
Different rating or performance 5AS4, 5AS4A, 5U4, 5U4G, 5U4GA, 5U4GT, CV575, CV841, VT244, VU71

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.

 

5U4-GB Ratings
Vh Ih VaMax IkMax Notes
5 3.0 PIV=1550V 1000 Tube drop = 50V @ 275mA DC

 

5U4-GB Application Data
Class RMSin Irect
FW rectifier 450-0-450 275

 

5U4-GB Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) 5U4GB: html
Duncan''s Amp Pages Various: Acrobat PDF (7 pages)
Peter Millett 5U4-GB: Acrobat PDF 300K  5AS4: Acrobat PDF 27K
National Valve Museum 5U4GB: html  5U4G: html2
oldradio.qrz.ru 5U4: MK buizen handboek  5U4G: Brans Vademecum
Frank Philipse 5U4GB: Acrobat PDF  5AS4: .gif file, 049/5/5AS4.pdf  5U4G: 121/5/5U4G.pdf, 137/5/5U4G.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) 5U4GB: 5R4GB.pdf (209863 bytes), 5U4GB.pdf (200623 bytes), 5U4GB.pdf (474101 bytes), 5U4GB.pdf (898939 bytes)  5AS4: 5AS4.pdf (36141 bytes)  5AS4A: 5AS4A.pdf (120480 bytes), 5AS4A.pdf (145057 bytes), 5AS4A.pdf (38612 bytes)  5U4G: 5U4G.pdf (110623 bytes), 5U4G.pdf (23046 bytes) (fr), 5U4G.pdf (342763 bytes), 5U4G.pdf (56063 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 5U4GB: 5R4GB.pdf (209863 bytes), 5U4GB.pdf (200623 bytes), 5U4GB.pdf (474101 bytes), 5U4GB.pdf (898939 bytes)  5AS4: 5AS4.pdf (36141 bytes)  5AS4A: 5AS4A.pdf (120480 bytes), 5AS4A.pdf (145057 bytes), 5AS4A.pdf (38612 bytes)  5U4G: 5U4G.pdf (110623 bytes), 5U4G.pdf (23046 bytes) (fr), 5U4G.pdf (342763 bytes), 5U4G.pdf (56063 bytes)
Triode Electronics 5U4: gif1, gif2, gif3, gif4, gif5, gif6
TubeZone 5U4GB: pdf
Virtual Valve Museum VU71: 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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