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EF37 Pinout
basing pinout

 

EF37 Substitutes

No information available

EF37 Ratings

No information available

EF37 Application Data

No information available

EF37 Data sheet links
The Valve Museum EF37: html
oldradio.qrz.ru EF37: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter) EF37: EF37.pdf (380548 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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