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Tag: pedal

DOD FX55B SupraDistortion – BigBuff Mod

Posted on September 16, 2014August 9, 2019 by abram

Here’s another in a line now of DOD pedal mods. For this FX55B, I decided to go for more of a BigMuff sound. Playing around with this pedal initially, I found it to be like most mass-produced distortion/fuzz effects. It had a very thin sound and that notorious volume drop that you may have heard…

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the Triode: final build

Posted on May 2, 2013 by abram

final build of my take on the Mitsumin Valvecaster.

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sqrt() reverb…

Posted on February 17, 2013February 17, 2013 by abram

this was the final build before it shipped out. circuit is a simple MOSFET (BS170) driver stage followed by two JFET (J201) recovery stages. i’ve included a sound sample of a similar reverb i built later without the second recovery stage and clipping diodes. it makes for a much more subtle reverb, but also tames…

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work in progress

Posted on December 3, 2012 by abram

early stages of a reverb effect pedal for guitar.

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MOSFET overdrive… final build?

Posted on June 11, 2012November 15, 2012 by abram

i might add some labels for the pots and contact info, but it’s done for the most part.

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PT2399 build…

Posted on May 19, 2012May 20, 2012 by abram

this is an older build now, but i wanted to post it while i’ve been on the subject to record the process. believe it or not, i still have some work to do on this one. i used a TL082 as a buffer for the mixing circuit. getting the gain set to my taste has…

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MOSFET overdrive…

Posted on May 18, 2012June 9, 2012 by abram

a forced contract job for Ryan of Falcon Scott. he’s been having some issues finding an overdrive suitable to his hollow-body guitar. i just got a lot of BS170s and thought this might do the trick. the distortion is pretty squared off on the oscilloscope and crunchy. the left pot is post volume while the…

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the Stirgiform PT2399 delay…

Posted on January 21, 2012March 6, 2012 by abram

two days worth of soldering and layout. it’s a combination of the Magnus Modulus and Rebote delay schematics. i couldn’t get the mixing circuit to really work from the Rebote schematic (an older version) without some serious distortion, so i just kind of reworked it on my own. here’s the schematic. i wouldn’t commit to…

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about

Abram Morphew is an electrical engineer, bedroom musician, composer, naturalist, and amateur scientist. I play music in the the binary marketing show. This blog is a catalog of stuff that I make or bits of information that I think could prove useful later on when memory fails me.

 

I currently hold an Extra Class Amateur Radio Operator license and transmit on the air as K2NXF.

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