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12BY7-A Pinout
basing pinout


12BY7-A Substitutes
Different rating or performance 12BV7, 12BY7, 12DQ7, 7733, EL180

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.


12BY7-A Ratings
Vh Ih VaMax Vg2Max PaMax Pg2Max Cgk Cak Cga
12.6 0.3 330 190 6.5 1.2 10.2 3.5 0.063
6.3 0.6


12BY7-A Application Data
Class Va Vg2 Ia Ig2 Ra S Rk
A 250 180 26.0 5.75 93,000 11.0 100


12BY7-A Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) 12BY7A: html
Peter Millett 12BY7-A: Acrobat PDF 191K
National Valve Museum 12BY7A: html
oldradio.qrz.ru 12DQ7: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12BY7A: 12BY7A.pdf (167243 bytes), 12BY7A.pdf (180551 bytes), 12BY7A.pdf (279102 bytes), 12BY7A.pdf (439122 bytes)  12BV7: 12BV7.pdf (471128 bytes)  12DQ7: 12DQ7.pdf (283713 bytes), 12DQ7.pdf (452882 bytes)  7733: 7733.pdf (244325 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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