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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

Brand: Mullard

Pinched Tip

Code On Tube: F91 B8D
Country: Great Britain
Factory Code: B - Mullard, Blackburn, B - Mullard, Blackburn
Getter: O-Getter Halo
Glass Color: Clear Glass
Mica: Double
Archive ID: qpr4vxl5

Plate Color

Matte Gray

Plate Look

Ribbed / Scale

Plate Size

Tip Shape

Pinched Tip

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More F91 type tubes

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ECC83, F91

Maker: Mullard
Brand: Ferranti

Heat ECC83, 12AX7, F91 tube - Mullard — photo 1 of 3

Heat ECC83, 12AX7, F91 tube - Mullard — photo 2 of 3

Heat ECC83, 12AX7, F91 tube - Mullard — photo 3 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

ECC83, 12AX7, F91

Maker: Mullard
Brand: Heat

Voice Of Music ECC83, 12AX7, F91 tube - Mullard — photo 2 of 6

Voice Of Music ECC83, 12AX7, F91 tube - Mullard — photo 3 of 6

Voice Of Music ECC83, 12AX7, F91 tube - Mullard — photo 4 of 6

Voice Of Music ECC83, 12AX7, F91 tube - Mullard — photo 5 of 6

Voice Of Music ECC83, 12AX7, F91 tube - Mullard — photo 6 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 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.