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Hardest part of the build is drilling them holes. Miscalculated 3pdt holes. I had to grind the screw holes to make them fit.

this one is the older version. Pulled the attiny and potentiometer. Replaced them with 3 toggle grounded to the 3 inputs of the HT8950. 8 modes.

I have the Aion one. What diodes did you use? Try 2xBAT41 on the first set of diodes ~600mV.

Try the AUX IN of your amp. Start low on volume setting. Build an attenuator. Just wire a potentiometer into a small pedal box. guitar>pedal>attenuator>aux in

http://www.muzique.com/lab/led.htm

Oh! I ordered Dark Rift 2 weeks ago. I hope it does not tick like my Sea Horse.

Following! Could this solve my ticking sea horse? I also got lm324 from tayda

3 x CR2032.... challenge accepted!

https://www.wrenandcuff.com/pedals/de-la-riva

Yup for the power supply

Regarding samurai. Can I substitute Jrc4741d with TL074?

From the Muffin pcb I already have the Triangle and Violet Ramshead. I also have a Muff Op-Amp, EHX Russian reissue, Musket Fuzz, Pharaoh, Ungula, G2 aaaaaand a Muffin Factory. Can I build the Colorsound Supa Tonebender using the Muffin board...

I used N on mine from mouser. All good https://www.mouser.ph/ProductDetail/Texas-Instruments/LM1458N-NOPB?qs=sGAEpiMZZMtCHixnSjNA6JlKxGj6zye%252BnV9xEWyrct8%3D

made these vipers and stuck them in 1590a enclosures. This one uses 2n2222 transistors.

This is not the 2020 version but the older one with potentiometer + attiny25 to switch between four modes. I had some problems with this and this project was scrapped for several months. There’s a new 2020 Roboto released this year and it features a 2P4T rotary switch. I figured since this is...

i used three DIP14s. Snip the inside of the DIP14 on the right.

I am also curious if I can simply use three SPDT on-on to ground each Input on the HT8950? Would I create more options? 8 instead of 4

i made a 2T4P specifically for this using two DPDT on-on toggle switch. Numbers in parentheses are the pin numbers on the attiny socket. Positions 1-3 works. I’m just not sure on position 4 where all three inputs(ht8950 pin 1-3) are not grounded.

willing to do it! My roboto is just in my junk pile and I want to revive it. I don’t mind the messy wiring. I will check the schematics on both old and new. I hope it’s just the pot and attiny. Thanks!

is there a way to convert my old roboto to the 2020 version? the roboto attiny25 does not work well with my build. could it be my ht8950?