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EF80 Pinout
basing pinout

 

EF80 Substitutes
Close or identical CV1376, Z152
Different rating or performance 6BX6

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.

 

EF80 Ratings
Vh Ih Cgk Cak Cga
6.3 0.3 7.5 3.3 0.007

 

EF80 Application Data
Class Va Vg2 Vg1 Ia Ig2 Ra S
Pentode 170 170 -2.0 10.0 2.5 500,000 7.4

 

EF80 Data sheet links
Duncan''s Amp Pages EF80: Acrobat PDF (6 pages)
National Valve Museum EF80: html
oldradio.qrz.ru EF80: html page, MAZDA Valves & Picture Tubes Data, MK buizen handboek
Frank Philipse (Pocnet mirror - Patrik Schindler) 6BX6: 6BX6.pdf (163000 bytes)  EF80: EF80.pdf (102552 bytes) (de), EF80.pdf (103236 bytes) (fr), EF80.pdf (35099 bytes), EF80.pdf (401856 bytes) (fr), EF80.pdf (4937988 bytes) (cs), EF80.pdf (764273 bytes), EF80.pdf (881094 bytes) (de), EF80.pdf (96500 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 6BX6: 6BX6.pdf (163000 bytes)  EF80: EF80.pdf (102552 bytes) (de), EF80.pdf (103236 bytes) (fr), EF80.pdf (35099 bytes), EF80.pdf (401856 bytes) (fr), EF80.pdf (4937988 bytes) (cs), EF80.pdf (764273 bytes), EF80.pdf (881094 bytes) (de), EF80.pdf (96500 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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