Anybody have a board layout for an old Maestro Fuzz Tone?

[zachomega]

I just got an old broken Maestro Fuzz Tone and the battery connector is broken.  Need to be replaced and the wires connecting it to the board are just hanging. 

First, does anybody know where to get a good replacement battery clip? 

Secondly, does anybody have a good internal picture of where the wires go or perhaps a board layout? 

Thanks,
-Zach Omega

[aron]

http://www.diystompboxes.com/pedals/FuzzTone.JPG

If it's this one, locate the on-off switch and connect the negative to that switch and the positive (red wire) anywhere to ground.

hmmm unless it's this one:

http://www.montagar.com/~patj/maefuzz.gif

Then the polarity of the battery is reversed.

[Sir H C]

It should be the 3 transistor version.  I have to get a picture of the FZ-1A, but here is the FZ-1.





The FZ-1 uses the dual battery clip, the FZ-1A the single AA holder, the B uses a 9 volt.

[zachomega]

Thanks guys. 

The schematic is looking like it matches up with the unit properly.  That is good since somebody clearly screwed around a bit inside.  Mainly looks like they replaced the cable and the battery leads. 

Both battery leads are brown, but the one going to the switch should be the negative and the one going to the board should be the positive/ground.  Right? 

Now I just have to get a new battery holder or something.  I'd try and salvage the old one except it is missing the insulators and solder tags on both sides.  Darn thing is riveted in too.  I'd hate to have to drill that out, but I guess I'll have to unless I can find another way to fix it. 

-Zach Omega

[aron]

Both battery leads are brown, but the one going to the switch should be the negative and the one going to the board should be the positive/ground.  Right?

Positive would go to ground if this is a positive ground circuit.

[petemoore]

  Anyone play around with that circuit? What does it sound like/sound like with a booster in front?...WGTP and I might like to know..!
  Buffer Q1 =1/1 gain >Q2looks like it's supposed to distort/distort >Q3...which has 10k collecor and 10k emitter resistors...should be 1/1 gain there?...interesting...
 

[zachomega]

If you take a look closely, you will notice that Q3 has a 10k colllector resistor and the emitter grounded.  The 10k resistor you are seeing is a base resistor.  This stage actually amplifies.  Bias is obtained through base leakage...I think?  Right? 

I don't know if I have the guts to stick a boost in front of this thing.  I don't know what those transistors can handle, but I suspect not too much in the way of large signals. 

-Zach Omega

  Anyone play around with that circuit? What does it sound like/sound like with a booster in front?...WGTP and I might like to know..!
  Buffer Q1 =1/1 gain >Q2looks like it's supposed to distort/distort >Q3...which has 10k collecor and 10k emitter resistors...should be 1/1 gain there?...interesting...
 

[analogguru]

The picture from Sir HC shows an FZ-1  (without A) with 2 N 270.
Interesting is the 470k resistor - which i have also observed on another FZ-1 units - and which is not drawn in the schematics found on the web.

So the FZ-1 and the FZ-1A differ mostly in the trannys, the interstage coupling capacitors (20µ vs 1µ) and the output pot configuration.

analogguru