This is another instrument I built for a friend, because if I don't build it for someone else, it never gets finished. I have boxes and boxes of unfinished projects for myself.
Anyway, here it is...
When I saw the tiny spider man lunchbox at the store, I knew it would be perfect. I'm really happy with the way this turned out.
Here is another angle...
Here is the schematic I used for it...
The only differences are that I added a switch in between pins 2 and 3 that selected between a photocell and the pot in the schematic, and another switch that selects between a 0.1uf ceramic cap and 1uf electrolytic cap on the first oscillator.
I've already given this one away so I can't make any recordings of it. I made a video though, just pretend like it isn't almost upside down...
When I originally bent this I only included a pitch knob, body contacts, and about 8 glitch switches. Which was okay, but I had seen schematics online that had used more. So I decided to take a second look. I used some stuff from a few things I've seen online and some other stuff I poked out myself.
Without further dudes...
From top to bottom, left to right...
1/4" Output Jack
5PDT Rotary Potentiometer Glitch Selector
Distortion Knob
Tone Momentary Push Button
2 Glitch ON/OFF Switches, connected to rotary switch
Long Glitch Knob
Hold Switch and Audition Button
Just like above...
Pitch Photocell
Photocell ON/OFF Switch
Coarse Pitch Knob
Fine Pitch Knob
Barely Visible Reset Button
Originally, I just removed the pitch trimpot and replaced it with a 100k pot. The pitch range was okay but removing the resistor next to the trimpot really opens up the range. You have you replace it with a jumper wire though. I used a 500k pot for the coarse knob and a 50k pot for the fine pitch. You could just split the difference and use a trimpot if you want. You could probably just leave the original trimpot and just remove the resistor, but I lost it after I removed it the first time.
Here is the inside and a diagram of the bends...
You can see I had to remove ribbon cable to the LCD screen because it broke. I had to rewire it and it was a pain. The ribbon cable is really finnicky so you have to be careful with it.
Its kind of a sloppy mess but oh well. You can see the jumper wire used when I removed the pitch resistor. The three black wires on the left are for the body contacts.
