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| 5U4 Pinout |
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| 5U4 Substitutes |
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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 Ratings |
| Vh |
Ih |
VaMax |
IkMax |
Notes |
| 5 |
3.0 |
PIV=1550V |
800 |
Tube drop = 44V @ 225mA DC |
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| 5U4 Application Data |
| Class |
RMSin |
Irect |
| FW rectifier |
450-0-450 |
225 |
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| 5U4 Data sheet links |
| Dave Cigna''s Pages (DuncanAmps mirror) |
5U4GB: html |
| Duncan''s Amp Pages |
Various: Acrobat PDF (7 pages) |
| Peter Millett |
5AS4: Acrobat PDF 27K 5U4-GB: Acrobat PDF 300K |
| National Valve Museum |
5U4G: html2 5U4GB: html |
| oldradio.qrz.ru |
5U4: MK buizen handboek 5U4G: Brans Vademecum |
| Frank Philipse (Wildcat mirror - Jörg Jan Münter) |
5U4G: 5U4G.pdf (110623 bytes), 5U4G.pdf (23046 bytes) (fr), 5U4G.pdf (342763 bytes), 5U4G.pdf (56063 bytes) 5AS4: 5AS4.pdf (36141 bytes) 5AS4A: 5AS4A.pdf (120480 bytes), 5AS4A.pdf (145057 bytes), 5AS4A.pdf (38612 bytes) 5U4GB: 5R4GB.pdf (209863 bytes), 5U4GB.pdf (200623 bytes), 5U4GB.pdf (474101 bytes), 5U4GB.pdf (898939 bytes) |
| Triode Electronics |
5U4: gif1, gif2, gif3, gif4, gif5, gif6 |
| TubeZone |
5U4: 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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