Author Topic: My new circuit - "1983 Fuzz" Old School Atari type fuzz  (Read 19306 times)

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Ultrakd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #20 on: April 13, 2012, 03:06:59 PM »
What do the pots do? I know one is Volume, what do the other 2 do?
Guitars: Ibanez S570DXQM
Amps:  Peavey ValveKing 112, Roland 15XL
Pedals: Big Muff w/ Tone & Wicker, Original Crybaby w/Modifications, BYOC Overdrive 2, Danelectro Cool Cat Chorus, Boss PH-3, Wave Breaker Tremolo,

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #21 on: April 13, 2012, 03:12:59 PM »
They each shape the sound. When I make the video, I'll demonstrate that. From left to right, each pot seems to go from bass to treble. The change is not extreme, but its a nice touch.

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #22 on: April 17, 2012, 12:43:08 PM »
Here's the video...Sorry in advance if you like red led's.

http://youtu.be/gBBBn1rE17s

petey twofinger

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #23 on: April 17, 2012, 05:52:48 PM »
excellent , thanks for the video .

i commented .

i will sub too , hold on .

subbed .
im learning , we'll thats what i keep telling myself

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #24 on: April 17, 2012, 06:14:21 PM »
Thanks Petey! Hey, I checked out your Youtube again - nice stuff - subscribed!

petey twofinger

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #25 on: April 18, 2012, 07:58:16 AM »
yeah i have to catch up on my video "production" ...

its really time consuming , but ... i really dig the idea of archiving this stuff i do .

thanks for the sub , i am looking forward to seeing more of YOUR work !

keep those oddball chassis comin  , the idea of reusing stuff like that , it really stands out , that's class man .

i used to do a lot of garbage pickin before i got hurt , i really miss those nights .
im learning , we'll thats what i keep telling myself

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #26 on: April 18, 2012, 10:00:34 AM »
Thanks for the kind words! That box for the 1983 fuzz was a black power supply I gutted and sprayed light blue - It really turned out better looking than I though when it was all assembled... I'm super new to the whole building scene, but I'm constantly working on a breadboard with whacked out stuff like a mad scientist. I'll post what I come up with if its anything good.

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #27 on: April 21, 2012, 09:14:34 PM »
Has anyone else tried this build? I'd love to hear feedback and/or suggestions...

Vince_b

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #28 on: April 22, 2012, 02:20:33 AM »
I'm going to try it but I don't have a 556 on hands and it might takes two weeks to get the one that I have ordered.
I really like the soundclip!

~arph

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #29 on: April 22, 2012, 04:26:06 AM »
I'm not getting the schematic  ???
I looks like you only using one of the timers in the 556.. then why is there a pot connected to the A discharge?  you're not using A's output at all..
Can't you just use a 555 instead?

Could you please elaborate?

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #30 on: April 23, 2012, 03:39:16 AM »
I'll have to do some breadboard work to see if one could get by with only a 555. The reason I used a 556 is because I'm using both threshold pins in the design (2 and 12) and didn't know if I could modify it. It might be more streamlined to use a 555 instead of the 556 and possibly remove a pot. The pot coming off discharge A? I have no electronical rational there - I was just screwing around with components on a breadboard.

Vince_b

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #31 on: May 08, 2012, 12:18:34 PM »
I have breadboarded this circuit with no success today. The only thing that I have achieved is an acrid smell coming out of the 556. Are you sure that there is no mistakes in the schematic that you have drawn?

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #32 on: May 08, 2012, 04:47:49 PM »
I'm pretty sure there are no mistakes.  I drew the schematic from my breadboard, then used that schematic to build my final version. I'll take a look if I have some time. Anyone else build this?

deadastronaut

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #33 on: May 08, 2012, 10:33:46 PM »
suggestion: put a 10uf on 386 pin 1-8... ;)

btw subbed ;)
http://www.youtube.com/user/100roberthenry
http://deadastronaut.wix.com/index

^ CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES.

kodiakklub

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #34 on: May 09, 2012, 03:31:27 AM »
DA: an electrolytic i assume? which way would + go or does it matter? making a proper schem in eagle right now for this and will post it

deadastronaut

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #35 on: May 09, 2012, 03:52:45 AM »
yep electro...  either way..   breadboard it first!!!... ;)
http://www.youtube.com/user/100roberthenry
http://deadastronaut.wix.com/index

^ CHASM REVERB / TREMSHIFTER / FAZE FILTER/ABDUCTOR II DELAY pcb's + WAH LIGHT PLATES.

kodiakklub

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #36 on: May 09, 2012, 04:02:05 AM »
i actually found it moments ago on another non-pedal related site. its the first google image result when searching "ic386"
timd: is this correct?


Vince_b

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #37 on: May 09, 2012, 04:12:29 PM »
I tried it again today (with the 10uF across pin 1-8) and I still counldn't get it to work  :(. There is no sound at all and as soon as I power it up the 556 is getting burning hot. It looks like such a simple circuit, I really don't get what I am doing wrong.
Have you breadboarded it kodiakklub?
« Last Edit: May 09, 2012, 04:14:07 PM by Vince_b »

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #38 on: May 10, 2012, 12:56:25 PM »
Kodiakklub - can you give me the link to this? I tried to type in the same google image search, but couldn't find it - must be a regional thing. Well, its not my circuit...but so close....Was I at least given credit in some way?

Vince - do you have a different 556 ic you can try? 

timd

Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« Reply #39 on: May 10, 2012, 04:10:33 PM »
Upon further review, minus the 10 uf cap, it looks like someone jacked my circuit. It's really easy to tell because I used some component sizes that might not be ideal and I was going to change. Distressing.