Octaver Clone |
This is the first octaver for gaussmarkov.net. If you have a steady soldering hand, or are seeking a challenge, this is a good one: a Pearl OC-07 clone. I used SMD ICs and a two-board arrangement to get everything (except a battery 
) into a Hammond 1590B. My build is pictured above; you can see the daughter board standing vertically at the bottom of the enclosure.
Because I laid everything out in Eagle it seemed natural to make everything available on gaussmarkov.net. Check out my website if you would like to see my small tube amp projects. And see my original posts on Aron’s diystompboxes forum: search for posts by zeta55 with the word “pearl” in them. You can find more discussion and some sound clips there.
/Krister
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gaussmarkov said:
Krister just pointed out a mistake that I introduced into board 1: a missing trace from C23 to R34. I just fixed it.
If you are building this with a project file dated before October 21, then use one of the component’s leads to make the connection. If you’ve already built it, then use a left over lead to patch in the trace.
Posted 21.10.2007 at 2:02 pm
zeta55 said:
I noticed that IC2 on the board2 schematic and layout calls for a TL074. In my pedal I have a LM324 in that position. If it matters I don’t know.
Posted 23.10.2007 at 11:23 pm
gaussmarkov said:
Finally … I changed IC2 to an LM324. I apologize for the delay.
Posted 15.11.2007 at 10:01 pm
js said:
Does anyone have a DIP layout or pcb? I realy don’t like to hand solder SMD chips and i’m no expert in Eagle
Posted 01.08.2008 at 2:53 am
diego said:
is the pcb layout in the photograph the same of the project? i’m curious because the position of the components in the photo is different from the layout…
Posted 05.02.2009 at 4:15 pm
zeta55 said:
diego, you’re right. The projekt files were edited after my first build. There were a few corrections made.
/Krister
Posted 07.02.2009 at 2:49 am
diego said:
Is there a bigger version of this project? with ICs of normal dimensions?
thanks,Diego
Posted 16.02.2009 at 11:39 am
Mário Calegaro said:
Maybe you can give some tips… I own an original OC-7, and his octave up doesn´t work anymore… Any advice? Have you seen this before? Thank you and congrats!
Ps.: I´m an eletronics technician that doesn´t work with eletronics since the trainee passage.
Posted 09.11.2009 at 3:06 pm