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: black_orpheus
DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  My new circuit - "1983 Fuzz" Old School Atari type fuzz 0 and 1 Guest are viewing this topic. « previous next »
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: My new circuit - "1983 Fuzz" Old School Atari type fuzz  ( 18527 )
Ultrakd
: 134

Chris R.


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #20 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #21 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #22 : 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
: 998



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #23 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #24 : April 17, 2012, 06:14:21 PM »

Thanks Petey! Hey, I checked out your Youtube again - nice stuff - subscribed!

petey twofinger
: 998



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #25 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #26 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #27 : April 21, 2012, 09:14:34 PM »

Has anyone else tried this build? I'd love to hear feedback and/or suggestions...

Vince_b
: 235



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #28 : 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
: 1551


Arnoud P. - The Netherlands


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #29 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #30 : 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
: 235



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #31 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #32 : 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
: 10417


Rob H. LONDON


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #33 : 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
: 240

Karl S. - Local One


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #34 : 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
: 10417


Rob H. LONDON


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #35 : 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
: 240

Karl S. - Local One


Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #36 : 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
: 235



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #37 : 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?
« : May 09, 2012, 04:14:07 PM Vince_b »
timd
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #38 : 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
: 582



Re: My new circuit - "1983 Fuzz" Old School Atari type fuzz
« #39 : 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.

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