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DIY Stompboxes => Building your own stompbox => Topic started by: El Heisenberg on February 14, 2010, 04:09:34 AM

Title: 4013 build suggestions?
Post by: El Heisenberg on February 14, 2010, 04:09:34 AM
I have one 4013 left from my MXR bluebox. I'm thinkin of making anoter one, but what else could I build with just one of thesE?

thanks
Title: Re: 4013 build suggestions?
Post by: oldrocker on February 14, 2010, 01:57:43 PM
Boss (Chopped) OC-2.  A cleaner sounding octave down.
Title: Re: 4013 build suggestions?
Post by: El Heisenberg on February 16, 2010, 07:00:53 AM
Ah this?

http://www.aronnelson.com/gallery/main.php/v/Processaurus/OC_2_chopped.gif.html?g2_imageViewsIndex=1


I liked the two octaves down with the blue box. But ill try this.

Is the a sub FET i can use for the 2SK30?? Also why a TL074 and an LM324? Why not two of one or other??
Title: Re: 4013 build suggestions?
Post by: Mark Hammer on February 16, 2010, 08:50:33 AM
Or simply save it for a flanger at a later date.
Title: Re: 4013 build suggestions?
Post by: oldrocker on February 16, 2010, 09:54:11 AM
I used two TL072's and a 324.  I'm not sure why they use the 324 instead of a cleaner quad op amp.  Also I used a 5952 for the jfet and a 3904 for the bi-polar.
Title: Re: 4013 build suggestions?
Post by: isildur100 on February 16, 2010, 10:17:43 AM
I used J201 for the fets and tried a tl074 instead of the 324. There was no difference, so I guess there is no problem to use a tl074 or 2 tl072's instead of that 324...

Title: Re: 4013 build suggestions?
Post by: El Heisenberg on February 17, 2010, 06:05:32 PM
I would need more ICs for the seconds octave down wouldn't I?
Title: Re: 4013 build suggestions?
Post by: soggybag on February 17, 2010, 08:17:01 PM
I think it's possible to make an oscillator from a 4013.