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EL504 Pinout
basing pinout
Note: Pin 9 is an internal connection

 

EL504 Substitutes
Different filament voltage 27GB5, CV10725, CV10955, EL500, PL500, PL504

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.

 

EL504 Ratings

No information available

EL504 Application Data
Class Va Vg2 Ia Ig2
Line output 75 200 440 30.0

 

EL504 Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) PL504: html
Duncan''s Amp Pages PL500: Acrobat PDF (8 pages)  PL504: Acrobat PDF (3 pages)
National Valve Museum PL500: html2  PL504: html
oldradio.qrz.ru PL500: html page, MAZDA Valves & Picture Tubes Data, MK buizen handboek
Frank Philipse EL500: 010/e/EL500.pdf  PL500: .gif file, 010/p/PL500.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) EL504: EL504.pdf (17062 bytes), EL504.pdf (478818 bytes) (fr)  EL500: EL500.pdf (35312 bytes), EL500.pdf (470327 bytes)  PL500: 6GB5.pdf (411522 bytes), PL500.pdf (32250 bytes), PL500.pdf (484292 bytes)  PL504: PL504.pdf (275215 bytes), PL504.pdf (36661 bytes) (fr)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) EL504: EL504.pdf (17062 bytes), EL504.pdf (478818 bytes) (fr)  27GB5: 6GB5.pdf (411522 bytes)  EL500: EL500.pdf (35312 bytes), EL500.pdf (470327 bytes)  PL500: PL500.pdf (32250 bytes), PL500.pdf (484292 bytes)  PL504: PL504.pdf (275215 bytes), PL504.pdf (36661 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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