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VT91 Pinout
basing pinout

 

VT91 Substitutes
Close or identical 6J7, 6J7G, 6J7GT, ARP16, CV1074, CV1935, CV1936, CV1937, VT74(RAF), VT91A
Different rating or performance 5A157D, CV1056, CV1404, CV358, CV5080, EF36, EF37, EF37A, OM5, OM5A, OM5B, VR56
Different filament voltage 12J7GT

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.

 

VT91 Ratings

No information available

VT91 Application Data

No information available

VT91 Data sheet links
Duncan''s Amp Pages Vade Mecum s. 70: Acrobat PDF (2 pages)
National Valve Museum 6J7: html2  6J7G: html
oldradio.qrz.ru 6J7: MK buizen handboek  6J7G: Brans Vademecum
Frank Philipse 6J7: 021/6/6J7.pdf, 028/6/6J7.pdf, 093/6/6J7.pdf, 121/6/6J7.pdf  6J7G: .gif file, 084/6/6J7G.pdf  EF36: 129/e/EF36.pdf  12J7GT: 121/6/6J7GT.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) 6J7: 6J7.pdf (173434 bytes), 6J7.pdf (212802 bytes), 6J7.pdf (75369 bytes) (fr), 6J7.pdf (78272 bytes), 6J7.pdf (86223 bytes)  6J7G: 6J7G.pdf (504682 bytes), 6J7G.pdf (71000 bytes)  6J7GT: 6A8GTX.pdf (438870 bytes), 6J7GT.pdf (111793 bytes) (fr)  EF36: EF36.pdf (144243 bytes), EF36.pdf (83603 bytes)  EF37: EF37.pdf (380548 bytes)  12J7GT: 12BA6.pdf (60988 bytes), 12J7GT.pdf (173104 bytes), 12J7GT.pdf (77694 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 6J7: 6J7.pdf (173434 bytes), 6J7.pdf (212802 bytes), 6J7.pdf (75369 bytes) (fr), 6J7.pdf (78272 bytes), 6J7.pdf (86223 bytes)  6J7G: 6J7G.pdf (504682 bytes), 6J7G.pdf (71000 bytes)  6J7GT: 6A8GTX.pdf (438870 bytes), 6J7GT.pdf (111793 bytes) (fr)  EF36: EF36.pdf (144243 bytes), EF36.pdf (83603 bytes)  EF37: EF37.pdf (380548 bytes)  12J7GT: 12BA6.pdf (60988 bytes), 12J7GT.pdf (173104 bytes), 12J7GT.pdf (77694 bytes)
TubeZone 6J7: pdf
Virtual Valve Museum VR56: 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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