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EF861 Pinout
basing pinout
Note: pin 6 is an internal connection

 

EF861 Substitutes
Different rating or performance 6688, CV3998, E180F

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.

 

EF861 Ratings

No information available

EF861 Application Data
Class Va Vg2 Vg1 Ia Ig2 Ra S
Pentode 180 150 -1.3 13.0 3.3 90,000 16.5

 

EF861 Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) 6688: html
Duncan''s Amp Pages E180F: Acrobat PDF
National Valve Museum E180F: html
oldradio.qrz.ru E180F: html page, MK buizen handboek
Frank Philipse 6688: 138/6/6688.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) E180F: E180F.pdf (1069717 bytes) (cs), E180F.pdf (211981 bytes) (de), E180F.pdf (286327 bytes), E180F.pdf (286361 bytes) (de), E180F.pdf (839113 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) E180F: E180F.pdf (1069717 bytes) (cs), E180F.pdf (211981 bytes) (de), E180F.pdf (286327 bytes), E180F.pdf (286361 bytes) (de), E180F.pdf (839113 bytes)
Virtual Valve Museum CV3998: HTML page

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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