PARASIT STUDIO
  • DIY GUITAR EFFECTS
    • Original Effects
    • Building blog
    • DIY Gallery
    • Stripboard layouts
    • Articles
  • SHOP
  • BUILD DOCS
  • ABOUT

Colorsound Octivider

5/8/2014

8 Comments

 
Another Octave Down, very different from the Synthbox. Cleaner and bassier octave.
Modded by me for true bypass. Have a look at my completed build here.
Picture
Picture
This circuit is a bit below unity gain, but John Kallas did his own version of my layout with an added boost daughterboard. Check out his layout here.
8 Comments
BB
12/20/2018 04:28:02 pm

Hello. Do you have the schematic of this mod?

Reply
Fredrik Lyxzen link
12/23/2018 03:43:51 am

Sorry, I don't have the schematic for this mod any more

Reply
BB
12/23/2018 10:50:07 am

Thanks. I will try to build one.

Reply
Gabriel
9/5/2019 08:32:39 pm

Hey, I've buit this a while ago and it was working like a charm, thanks! The only problem was I kept having trouble with transistors popping out of sockets transporting it between gigs. So today I decided to solder them in, and to my dismay the effect stopped working. All I get now is that the blend acts as a tone knob and low-passes stuff at high wiper positions.

I've checked for bridging between the rails but all of that seems fine. Do you have any idea what it could be?

Reply
Gabriel
9/5/2019 08:46:06 pm

A little more information regarding this. I checked the BC and BE forward voltages for all BJTs, which all gave a nice .7V. The GS and GD voltages for the FETs were also .7V, but the DS voltages were quite different. Q1 showed .04V while Q2 showed .35V.

Also, the sensitivity pot does absolutely nothing now.

Reply
Gabriel
9/6/2019 09:40:08 am

Oops, all I had was that the rail H was broken between Q6 and the jumper. All is fine now.

Fredrik Lyxzén link
9/6/2019 10:15:54 am

Hi Gabriel,

I was just about to reply when I saw your new comment. Good to hear that you found the issue. :)

Cheers / Fredrik

Benoit Meulle-Stef
8/18/2020 10:16:02 am

Is the direct sound and octave sound supposed to fuzz or clean sound?

Cheers

Benoit

Reply



Leave a Reply.

    vero layouts

    All the layouts are Verified unless noted.

    Archives

    February 2018
    October 2017
    September 2015
    June 2015
    April 2015
    February 2015
    December 2014
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014

    Categories

    All
    Amps
    Boosters
    Chorus
    Compressor
    Filters
    Fuzz
    Noise
    Octave Down
    Overdrive & Distortion
    Phaser
    Pro Audio
    Ringmods
    Tremolo
    Utility

    RSS Feed

  • DIY GUITAR EFFECTS
    • Original Effects
    • Building blog
    • DIY Gallery
    • Stripboard layouts
    • Articles
  • SHOP
  • BUILD DOCS
  • ABOUT