1963 Vibroverb
(Brown Vibroverb)

Year:

 1963

Model:

 Vibroverb

Model No:

 6G16

Config:

 Combo

Control Panel:

 Brown forward facing w/ white screened labels, controls numbered 1-10

Front Conrol Layout:

 Normal: In, In, Vol, Treb, Bass - Bright: In, In, Vol, Treb, Bass, Reverb - Speed, Intensity - Pilot Lamp

Rear Conrol Layout:

 AC Outlet, Ground Sw, Fuse (2A), Power Sw, Standby Sw, Speaker Jack, Ex. Speaker Jack, Vibrato Jack, Reverb Jack, Reverb Out, Reverb In

Knobs:

 Brown round

Cabinet:

 ?" x ?" x ?"

Cab Covering:

 Brown Tolex

Cab Hardware:

 Brown leather handle, 4½" chassis straps, glides

Grille:

 Wheat grille cloth

Logo:

 Grille mounted, flat, chrome & black script "Fender" w/ tail

Weight:

 ?

Speakers/Load:

 2 x 10"/4 ohms (8 ohms each in parallel)

Speaker Model:

 Oxford 10K6

Effects:

 Tremolo, Reverb

Output:

 ?

Preamp:

 Normal: 7025
Bright: 7025

Power:

 2 x 6L6GC

Bias:

 Fixed Bias, nonadjustable

Rectifier:

 GZ34

Phase Inverter:

 7025 (long tailed)

Other:

 Reverb Driver: 12AX7
Reverb Recovery: 7025
Tremolo: 12AX7 (bias vary)

Comments:

 There are rumors of early prototpye models of the vibroverb made in 62 w/ white Tolex covering.