Archive for September, 2013

well, my little overdrive pedal is done :)

I just finished my overdrive pedal 🙂 It can be powered off a 9v battery or wall adapter. The control across the top from left to right are hotness, tone, gain. The bottom two knobs are variac and volume.

The “Hotness” control allows fine tuning of the internal amplifier to accommodate different guitar pickups. Basically it compensates for different pickups to allow for a nice variety of tone.

Tone and gain should be pretty easy to understand for most.

Variac allows me to adjust the input voltage powering the logic IC used in this overdrive pedal. I can starve the input voltage to give it some subtle changes in tone.

And the volume… lets me adjust the volume 🙂

Anyway, I don’t have labels for it and am considering a name for it. Perhaps… Thundersqueak 🙂

Ube Screamer

Posted: September 3, 2013 in Projects

Ube Screamer

Today I decided that I wanted a new overdrive pedal, something that I couldnt readily buy. A new sound. After digging around a bit and looking at the jabillion (yep jabillion) tube screamer clones out there, I came across this little circuit at http://www.runoffgroove.com/ubescreamer.html The “UBE SCREAMER”.

Unlike other overdrive pedals, this one is based on a logic IC instead of your standard opamp.

Someone was kind enough to post their results of this build on youtube If you are interested in taking a peak on what this little circuit can do..

I am going to be implementing a Volume, Gain, Tone, and Variac pots (see circuit) , as well as a 3 way rotary switch to allow for different types of guitar pups and sounds.  Another addition is a true bypass switch and the ability to power it off a 9 volt battery or power supply, for this I am implementing a DPDT switch.    I had all the parts for the main board in my junk box, so this is a total win 🙂

Now just to find a nice enclosure for it.