1 knobber, Heliotrope/Robot

[sonarchotic]

Here is the classic one knob fuzz built to Ritual specs except transistors. The 2p2222a's were too loud and oscillating and so were BC108's. I had AC176's at around 90 hfe that sound great and got rid of the racket so it's a Ge Ritual. My first 1590a and swirl too. The swirl turned out great but the clear coat f'd it up some.



This is Catilinbread's Heliotrope and Death By Audio's Robot in a box together. The Heliotrope has a pretty good straight fuzz and several cool octave up tones. The Robot has weird arpeggiation, octaves up and down, robot sounds and there's  a lot of fun interplay between the two circuits. Mostly this is a knob turning, synth fun kind of noise box. This was built as a trade for an artist friend who is going to finish the box or have me do a swirl after he gets to play with it for a while. My knobs are bunched up too close to the foot switches.

[billstein]

Great swirl. One of the best I've seen.

[diablochris6]

Great double-pedal build!  I'm looking forward to putting together a Robot sometime down the line.  Are there many useful tones, or is it a fun noisemaker?

[sonarchotic]

Thanks guys! Both the Heliotrope and Robot are pretty wild circuits. The Heliotrope probably is your best bet for 'useful' sounds but the Robot is a lot of fun. The Robot or better yet the main chip in it has a ton of untapped potential. The DBA version uses different pins on the chip than the tagboard modded version does. I think you could possibly use all the pins and use a combo of spst momentarys and a rotary switch to tap all the chip can do. I have some more chips so I plan to play around with some possibilities.