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12SK7 Pinout
basing pinout

 
12SK7 Substitutes
Close or identical 12SK7GT, CV543, CV544, CV922, VT131

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.

 
12SK7 Ratings
Vh
V		 Ih
A		 VaMax
V		 Vg2Max
V		 PaMax
W		 Pg2Max
W		 Cgk
pF		 Cak
pF		 Cga
pF
12.6 0.15 300 300 4.0 0.4 6.0 7.0 0.003

 
12SK7 Application Data
Class Va
V		 Vg2
V		 Vg1
V		 Ia
mA		 Ig2
mA		 Ra
Ω		 S
mA/V
A 250 100 -3.0 9.2 2.6 800,000 2.0
A 100 100 -1.0 13.0 4.0 120,000 2.35

 
12SK7 Data sheet links
The Valve Museum 12SK7: html
oldradio.qrz.ru 12SK7: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12SK7: 12A8G.pdf (82544 bytes) (fr), 12SK7.pdf (219404 bytes), 12SK7.pdf (57775 bytes), 6SK7.pdf (349513 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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