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VT133 Pinout
basing pinout

 
VT133 Substitutes
Close or identical 12SR7, 12SR7GT, CV3980, CV700
Different filament voltage 6SR7, 6SR7GT, CV867, VT233

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.

 
VT133 Ratings

No information available
VT133 Application Data

No information available
VT133 Data sheet links
The Valve Museum 6SR7: html
oldradio.qrz.ru 12SR7: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12SR7: 12SK7.pdf (57775 bytes), 12SR7.pdf (216004 bytes)  12SR7GT: 12SR7GT.pdf (50076 bytes)  6SR7: 6SR7.pdf (117291 bytes)  6SR7GT: 6SR7.pdf (109091 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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