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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)

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ECC83, F91

Manufacturer: Mullard
Brand: Ferranti

Pinched Tip

Code On Tube: F91 B8J
Country: Great Britain
Factory Code: B - Mullard, Blackburn, B - Mullard, Blackburn
Glass Color: Clear Glass
Mica: Double Mica
Archive ID: 58st4pzt
Pin Color: Silver Pins

Plate Color

Matte Gray

Plate Look

Ribbed / Scale

Plate Size

17mm

Tip Shape

Pinched Tip

Year

1958

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EL34, XF2
Maker
Mullard
Brand
Sylvania
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
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Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 8
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 6
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 4
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 9
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 6
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 3
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 3
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 3

More F91 type tubes

Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 9
ECC83, B339, F91
Maker
Mullard
Brand
Marconi
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 9
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 3
Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.
Photo 1 of 6

ECC83, 12AX7, F91

Maker: Mullard
Brand: Voice Of Music

Equivalent and related tube numbers

Commonly cross-referenced designations for ECC83. Compatibility is not guaranteed. Before substituting, verify socket and pinout, heater voltage and current, bias requirements, and maximum ratings against the relevant manufacturers’ datasheets.