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12SA7 Pinout
basing pinout

 
12SA7 Substitutes
Close or identical 12SA7GT, CV537, CV538, VT161
Different filament voltage 6SA7, 6SA7GT, CV1966, CV1967, VT150, VT150A

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.

 
12SA7 Ratings
Vh
V		 Ih
A		 VaMax
V		 Vg2Max
V		 PaMax
W		 Pg2Max
W
12.6 0.15 300 100 1.0 1.0

 
12SA7 Application Data
Class Va
V		 Vg2
V		 Vg1
V		 Ia
mA		 Ig2
mA		 Ra
Ω		 S
mA/V
Mixer 250 100 -2.0 3.8 8.5 1,000,000 0.45
Mixer 100 100 -2.0 3.3 8.5 500,000 0.425

 
12SA7 Data sheet links
Peter Millett 12SA7: Acrobat PDF 23K  6SA7: Acrobat PDF 331K
The Valve Museum 6SA7GT: html
oldradio.qrz.ru 12SA7: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12SA7: 12A8G.pdf (82544 bytes) (fr), 12SA7.pdf (288007 bytes), 12SA7.pdf (56736 bytes), 6SA7.pdf (278619 bytes)  6SA7: 6SA7.pdf (125413 bytes), 6SA7.pdf (268756 bytes), 6SA7.pdf (322709 bytes), 6SA7.pdf (83250 bytes) (fr), 6SA7.pdf (88784 bytes) (de)

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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