Title imageTitle image

 Menu

Home
Tube data
Schematics
Software
Search engines

 

 Information

Help
Terms of use
News
Statistics
Credits
VT131 Pinout
basing pinout

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

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.

 
VT131 Ratings
Vh
V		 Ih
A		 VaMax
V		 PaMax
W		 Pg2Max
W		 Cgk
pF		 Cak
pF		 Cga
pF
12.6 0.15 300 4.0 0.4 6.0 7.0 0.003

 
VT131 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

 
VT131 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), 6SK7.pdf (349513 bytes)  12SK7GT: 12SK7.pdf (219404 bytes), 12SK7.pdf (57775 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

All content on this page is copyright 1997-2026 Duncan Amplification Limited.

TDSL is advert free and is funded by voluntary donations. If you find the site useful, please consider making a small voluntary donation, thank you

Version: PHP release 1.16 22-Jan-2025