![]() ![]() My guess is that the problem will go away. Try swapping the leads on the new OT too. However, when my Fluke is measures the voltagesĮvery CC Resistor in the amp has drifted out of Spec.Īny Ideas? I have the tools, and will post results and The amp is stable and no squeal with out a PI tube. The other voltages are all close to spec. TUBEs, have been installed with a known good test set. Have been replaced: mains, bypass, and bias. (on the second cap)īecause of the age of the amp, and the mis-wire all the electrolytics Red to pos and black to the other positive. AB763 BANDMASTER SERIESI found them in with in series with a common ground,Īnd amplifier wiring leads to the caps were: Mains filters replaced-however they were mis-wired. Output tube socket resistors replaced with Peeled back and separated (no insulation for about there is still some carbon scarringĪnd some heater wire insulation was burnt and I imagine a tube went south and took out theĬC resistors. He took it in for service about five years ago. I did find the following, and according to the owner This is not the result of the out of phase Brn/Blu lead on output tube socketīeing on wrong socket (tried both ways, still squeal). Vibrato: In, In, Bright Sw, Vol, Treb, Bass, Speed, Intensity, Pilot Lamp Handle: Black strap handle with Chrome ends Feet: Chrome Glides Corners: Chrome Corners with Lip Fender Black Tolex Blue sparkle grille cloth w/ aluminum frame ~ 1968-1969 Logo: Grill mounted, raised, chrome & black, script (Missing) Effects: Tremolo (Unusable without Footswitch, not included) Watts: 50 watts Preamp Tubes: 1 x 12AX7, 2 x 7025, 1 x 12AT7 (Groove Tubes, 1 replacement J/J) Power Tubes: 2 x 6L6 (Groove Tubes GT-6L6B) Bias: Fixed Rectifier: Solid State Impedance: 4 ohms Dimensions: Head: 9 1/2″ x 7 7/8″ x 24″, Cabinet: 11 3/8″ x 28 7/8″ x 38 7/8″ Actual Weight: 28 lbs.Interestingly, it has a high pitched squeal when turned Specifications Model/Circuit Number: AB763 Year of Production: 1968 Era: Silverface (First Year) Configuration: Piggyback Controls: Silver forward facing w/ blue labels Knobs: Black skirted w/ chrome center, numbered 1 – 10 Front Faceplate: Normal: In, In, Bright Sw, Vol, Treb, Bass. ***Please Note that the Tremolo has been tested with a footswitch from a separate amp however, this amp does not come with a footswitch.*** The amp you see is the one you will receive! We invite you to view its pictures carefully and to contact us with any questions you may have. This amp has plenty of power and headroom. ![]() This amp sounds amazing! A very powerful, plucky Fender tone that can drive a 212 or 412 cab like nobody's business! The tremolo is rich and capable of any speed or intensity you'd most likely ever want or need. Items that appear to have been replaced are some board components (see pic) and the power cable. The knobs are all present and look very good! Much appears to be original to the amp, including Tolex, grillcloth, transformers, handle, and back panel. There is oxidation on the metal corners and screw heads. The grill cloth is intact, and the tolex looks very good aside from a few snags here and there (see pics). in 1997 in Pensacola, Florida, has been named by NAMM (National Association of Music Merchants) as one of the "TOP 100" music stores in the USA since 2011!!! Your satisfaction is our #1 objective!ġ968 Vintage Fender Band-Master AB763 Guitar Amp Head, All Working Order! #34776īlues Angel Music is pleased to present this 1968 Fender Band-Master Head! This was the first-year of the Silverface, and only year with the Aluminum Drip Edge frame around the grille cloth, yet retaining the AB763 circuit! This amp is in Very Good to Excellent Condition for an amp of this vintage. Thank you for taking the time to visit Blues Angel Music's Reverb store! Blues Angel Music, est. ![]()
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