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12SL7 Pinout
basing pinout


12SL7 Substitutes
Close or identical 12SL7GT, CV924, VT289
Different filament voltage 6113, 6H9M*, 6N9C*, 6N9M*, 6N9S*, 6SL7, 6SL7GT, 6SL7GTY, 6SU7GTY, CV1985, VT229

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.


12SL7 Ratings
Vh Ih VaMax PaMax Cgk Cak Cga
12.6 0.15 300 1.0 2.15 0.9 3.5


12SL7 Application Data
Class Va Vg1 Ia Ra S
A 250 -2.0 2.3 44,000 1.6


12SL7 Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) 6SL7GT: html
Duncan''s Amp Pages Vade Mecum s.342: Acrobat PDF (2 pages)
Peter Millett 12SL7-GT: Acrobat PDF 23K  6SL7-GT: Acrobat PDF 133K
National Valve Museum 6SL7GT: html, html2
oldradio.qrz.ru 12SL7: MK buizen handboek  6N9S*: html page
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12SL7GT: 12JN8.pdf (76733 bytes), 12SA7.pdf (56736 bytes), 12SK7.pdf (57775 bytes), 12SL7GT.pdf (56954 bytes)  6113: 6113.pdf (56215 bytes)  6188: 6188.pdf (227902 bytes), 6188.pdf (328523 bytes)  6SL7: 6SL7.pdf (71264 bytes) (de)  6SL7GT: 6S4A.pdf (108423 bytes), 6SL7GT.pdf (131131 bytes), 6SL7GT.pdf (144524 bytes), 6SL7GT.pdf (367256 bytes), 6SL7GT.pdf (96942 bytes)  6SL7WGT: 6SL7WGT.pdf (159238 bytes), 6SL7WGT.pdf (306821 bytes)  6SU7GTY: 6SU7GTY.pdf (80899 bytes)
Triode Electronics 6SL7GT: gif1, gif2, gif3
TubeZone 6SL7GT: 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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