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811 Pinout
basing pinout


811 Substitutes
Close or identical CV628, CV9853, VT217
Different rating or performance 811A, CV5043

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.


811 Ratings

No information available

811 Application Data

No information available

811 Data sheet links
National Valve Museum 811: html
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 811: 811.pdf (5690628 bytes)  811A: 811A.pdf (421600 bytes)
Triode Electronics 811A: gif1, gif2, gif3, gif4, gif5, gif6, gif7, gif8
TubeZone 811A: 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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