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Fender Twin (Blonde)

Schematic/Layout:

• twin_6g8.pdf
• twin_6g8a.pdf

Model/Circuit Number: 6G8, 6G8-A
Years of Production: 1961-1963
Era: Blonde
Configuration: Combo
Controls: Brown forward facing w/ white screened labels, controls numbered 1-10
Knobs: White Barrel
Faceplate

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

Cabinet

• Dimensions: 19'' x 27½'' x 10¼''
• Hardware: Large Chassis Straps 5 5/8'', 16'' Tilt-Back Legs
• Handle: Brown Dogbone (61-63) or Black Strap (late 63)
• Feet: Glides
• Corners: Chrome Corner with Lip, Large Chassis Straps

Covering Material

• Tolex/Tweed: Rough Blonde
• Grill Cloth: Oxblood (61-62) or Beige Brown(63)

Logo: Grill mounted, flat, chrome & black script
Weight: 66 lbs. (29.9 Kg)
Speaker

• Size: 2 x 12''/4 ohms (8 ohms each in parallel)
• Impedance: 4 ohms or 2 ohms
• Model: Jensen P12N or Oxford 12M6(For more info, check out the Jensen Replacement Speakers)

Effects: Tremolo
~Watts: 80-100 Watts
Tubes

• Pre amp: Normal: 7025 Bright: 7025, Phase Inverter: 7025 (long tailed)
• Power: 5G8: 4 x 6L6GC 5G8-A: 4 x 5881

Bias: Fixed Bias, nonadjustable
Rectifier: Solid State

Comments: Tremolo: 6G8: 2½ x 7025 (harmonic vibrato) 6G8-A: 12AX7, ½ 12AX7 and a 7025 (harmonic vibrato)
* There are rumors of a brown Twin Amp, but these if they exist were probably prototypes.
* The tremolo circuit left ½ a dual triode (12AX7 or 7025) unused.