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40 Pinout
No information available

 

40 Substitutes
Close or identical 240, 340, 3720, 440, CV2501, VT40

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.

 

40 Ratings

No information available

40 Application Data

No information available

40 Data sheet links
The Valve Museum 40: html
oldradio.qrz.ru 40: Brans Vademecum
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 40: 40.pdf (26865 bytes), 40.pdf (41331 bytes) (fr)

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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