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Fender Bassman 100 cab -- how do you access the speakers?  Fender Twin Reverb Master Volume

Showman (Blonde) » 

Years of Production: 1960 - 1963
Model/Circuit Number: 6G14, 6G14-A
Cabinet Dims: Head: 8 x 26 x 9, Showman 12: (ported tone ring) 21 x 30 x 11½, Showman 15: (ported tone ring) 24½ x 36 x 11½, Double Showman: 24½ x 36 x 11½

Tremolux (Blonde) » 

Years of Production: 1961 - 1963
Model/Circuit Number: 6G9, 6G9-A, 6G9-B
Cabinet Dims: Head: 8 x 23 x 8 3/8, Cabinet: 17½ x 27 x 11½

Bandmaster (Blonde) » 

Years of Production: 1961 - 1963
Model/Circuit Number: 6G7-A
Cabinet Dims: Head: 8 1/2'' x 24'' x 9'', 61: Ported Tone Ring, 21'' x 30'' x 11½'', 62-63: Sealed, 21'' x 32'' x 11½''

Tremolux (Blackface) » 

Years of Production: 1963 - 1966
Model/Circuit Number: AA763
Cabinet Dims: Head: 8 x 23 x 8½, Cabinet: 17½ x 28 x 11½

Bandmaster (Blackface) » 

Years of Production: 1963 - 1967
Model/Circuit Number: AB763
Cabinet Dims: Head: 8'' x 24'' x 9'' Cabinet (63-67): 21'' x 32'' x 11½'', (67) 29½'' x 40'' x 11½''

Showman (Blackface) » 

Years of Production: 1963 - 1967
Model/Circuit Number: AA763
Cabinet Dims: Head: 8 x 26 x 11½, Showman 12 (early): 21 x 32 x 11½, Showman 12 & 15: 24½ x 36 x 11½, Dual Showman (63-67): 24½ x 36 x 11½, Dual Showman (67): 45½ x 30 x 11½

Showman (Silverface) » 

Years of Production: 1968 - 1970
Model/Circuit Number: AB763, AC568, AA768
Cabinet Dims: Head: 8¼ x 23¾ x 9½, Dual Showman: 45½ x 30 x 11½

Bandmaster (Silverface) » 

Years of Production: 1968 - 1975
Model/Circuit Number: AA763, AB763, AC568, TFC-5005
Cabinet Dims: Head: 9 1/2'' x 7 7/8'' x 24'' , Cabinet: 11 3/8'' x 28 7/8'' x 38 7/8''

Bandmaster Reverb » 

Years of Production: 1968 - 1980
Model/Circuit Number: AA768, AA568, AA1069, or TFL5005
Cabinet Dims: Head: 13'' x 25'' x 9½'' , 68-75: 39'' x 29'' x 11½'', 30'' x 28'' x 12''

Showman (Dual Reverb) » 

Years of Production: 1968 - 1981
Model/Circuit Number: AA270, AA769, TFL5000D
Cabinet Dims:

Bassman (Super Bassman, 100, 135) » 

Years of Production: 1969 - 1983
Model/Circuit Number: (69-71) Super Bassman ; (72-76) Bassman 100 ; (77-83) Bassman 135
Cabinet Dims: Head: (Super Bassman) 13¼ x 26 x 9½, (Bassman 100): 8 3/4 x 26 1/8 x 9 1/2, Cabinet: (Super Bassman): 45½ x 30 x 11½, (Bassman 100): 40¼ x 30¼ x 17

Showman (Red Knob) » 

Years of Production: 1987 - 1993
Model/Circuit Number:
Cabinet Dims:

Tonemaster » 

Years of Production: 1993 - Present
Model/Circuit Number:
Cabinet Dims: Head: 9 x 24 x 9½, Cabinet: (212 Enclosure): 21 x 32 x 12, (412 Enclosure): 27¾ x 27¼ x 13

Rumble Bass » 

Years of Production: 1995 - 1999
Model/Circuit Number:
Cabinet Dims: Head: 10 x 24½ x 13½, Cabinet: 24½ x 24½ x 18

Prosonic Head » 

Years of Production: 1995 - Present
Model/Circuit Number:
Cabinet Dims: 9 x 24 x 9½