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Fender Vibrasonic (Brown)

Schematic/Layout:

• vibrasonic_5g13.pdf
• vibrasonic_6g13a.pdf

Model/Circuit Number: 5G13, 5G13, 6G13-A
Years of Production: 1959 - 1963
Era: Brownface
Configuration: Combo
Controls: Brown forward facing w/ white screened labels, controls numbered 1-10
Knobs: Brown Round
Faceplate

• Front: 5G13: Normal: In, In, Bass, Treb, Vol - Vibrato: In, In, Bass, Treb, Vol, Speed, Intensity - Presense - Pilot Lamp ; 6G13-A: Normal: In, In, Vol, Treb, Bass - Vibrato: In, In, Vol, Treb, Bass, Speed, Intensity - Presense - Pilot Lamp
• Rear: 5G13: Ground Sw, Fuse (3A), Power Sw, Standby Sw, Speaker Jack, Vibrato Jack ; 6G13-A: Ground Sw, Fuse (3A), Power Sw, Standby Sw, Speaker Jack, Ex. Speaker Jack, Vibrato Jack

Cabinet

• Dimensions: 20 x 25 x 10¼
• Hardware: Large Chassis Straps 5 5/8''
• Handle: Brown Plastic
• Feet: Glides
• Corners:

Covering Material

• Tolex/Tweed: Pinkish brown (59-61) or brown Tolex (61-63)
• Grill Cloth: Brown (59-61), Maroon (61-62) or Wheat (62-63) grill cloth

Logo: Grill mounted, flat, chrome & black script
Weight:
Speaker

• Size: 1 x 15
• Impedance: 8 ohms
• Model: JBL D-130F(For more info, check out the Jensen Replacement Speakers)

Effects: Tremolo
~Watts:
Tubes

• Pre amp: 7025
• Power: 5G13: 2 x 6L6GC ; 6G13-A: 2 x 5881

Bias: Fixed Bias, Nonadjustable
Rectifier: Solid State

Comments: Tremolo: 5G13: 2 x 7025 (harmonic vibrato) 6G13-A: 12AX7, 12AX7 and 7025 (harmonic vibrato) Mode 6G13-A's tremolo circuit left 12AX7 unused. Some early Vibrasonics have a plugged hole in the rear panel labeled "pulse adj." located about 1½" to the right of speaker jack. As the label implies this may have been a control to adjust the waveform of the tremelo. 60 Vibrasonic Rear Panel