Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz?

jerms · Post by **jerms** » Sat Dec 24, 2011 10:17 pm

the schemo i posted is definitely no the circuit in my double sound..... i'm going to trace it out as soon as i get the time but it seems pretty different from any super fuzz circuit i've seen.... it has 4 diodes! here's some pix if anyones interested...

jerms · Post by **jerms** » Sun Dec 25, 2011 8:41 am

hey all, i've just gotten the first part of this baby traced......

and it a big muff!!!!!!!

calling kit rae..... something new to add to the BM site....... no wonder it sounded so good!!!

back soon!!....

mjkk · Post by **mjkk** » Sun Dec 25, 2011 6:38 pm

no shit, nice work

FUZZTX · Post by **FUZZTX** » Sun Dec 25, 2011 11:49 pm

Wow! Interesting!

jerms · Post by **jerms** » Mon Dec 26, 2011 2:07 am

well i've just figured out that it's a OD-850/maxon D & S with a switch for the tone control instead of a pot..... still need to wrap my brain around what the switch is doing but a D & S is it's essence!!!!

edkoppel · Post by **edkoppel** » Mon Dec 26, 2011 2:32 am

The D&S strikes again.

John Lyons · Post by **John Lyons** » Mon Dec 26, 2011 4:32 am

Ha! Big muff! (again, jeez)

jerms · Post by **jerms** » Mon Dec 26, 2011 6:18 am

figured out the tone switch.... basically the switch makes it go from full treble to full bass..... nothing in between!!!

might have to put a pot in there instead of the tone switch....

oh and it's got a jfet input buffer.......

agoldoor · Post by **agoldoor** » Mon Dec 26, 2011 8:48 am

That... is so crazy. I wondered why it was the coolest super fuzz I'd ever heard... Muff for the win!

Jasper the Cracker · Post by **Jasper the Cracker** » Mon Dec 26, 2011 9:20 am

Here is the schematic we traced out from the 83 that Bart has.

It has a K30A Fet, a 2SC644 and another K30A at the end. T1 & T3 are the FETS. Both pots are 50KB's on the original too...
Oops!I used a regular bipolar symbol in the schematic

It is a crazy sounding circuit. I would be interested to hear what you you guys say about this setup. I found the original a bit gatey and by re-biasing R2, R5 & R11 to 6K8 it sings. I also changed C4 to a .1uf. Those were the only changes I made to tune it to my ear. I added the pull down resistors too.

Hope this helps

Chris

Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz?

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

Re: Ibanez Fuzz No. 83 -- same as Ibanez Double Sound's fuzz

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