SOLVED 1966 Maestro Fuzz-Tone

yazooligan

yazooligan

Active member
Hey folks. I had a coworker bring me his ‘66 Fuzz Tone for repair. It’s missing the washer flange thing from the front, and he had a new input cable installed a few years ago by a local shop. Everything else appears to be original. It passes signal when the effect is off, but nothing was coming through when on.

I opened it up on my bench, saw a lead missing from the battery tray, consulted the schematic, wired in a new one, and….got fuzz, but it’s very weak and quiet. Tried a new battery and got the same result. Photos were taken before I added the missing lead.

Any guesses at what the problem could be before I break out the probe?

Note: Shoutout to the local shop “tech” who left the negative battery tray joint so cold that the wire slipped right out when I pushed on it. Fixed that before I tested it too. I don’t know if that shop still has the same person doing pedal repairs but yikes.
 

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As far as the foot switch washer goes:

Grommet - Rubber, for FZ-1 Style Footswitch Mounting | Amplified Parts

Large rubber grommet for mounting footswitches on FZ-1 and FZ-1A style builds. Requires a 0.812” (20.6mm) mounting hole. This grommet’s 0.5” (12.7mm) inner diameter fits most common footswitches. These are great for replacing originals, replica builds of these Maestro pedals or for general sound...
www.amplifiedparts.com www.amplifiedparts.com
 
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Check some simple stuff. Make sure none of the leads are touching anything they should not be. And check for cold joints. Every joint. And the battery voltage reaching the first part as others have suggested.
 
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Coda said:
Ok. Those do seem off. Usually it’s around .5/1/.7…
Click to expand...
Are you measuring those voltages against ground, @yazooligan? Or are you measuring the voltages between the transistor terminals? If you aren't doing so already, I'd recommend connecting one probe to ground/the positive battery terminal and using the other probe to check the voltage at each transistor leg.
 
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