Messages

https://youtu.be/accEKtBebaU

If you haven't seen it. Watch it.

Haha! Great movie

1/4W 100R resistor did the trick!
Also, a 2N1308 tranny sounds excellent in this circuit

Thanks everyone!

I put together a SSBS Sparkle Motion board that I etched from here... https://effectslayouts.blogspot.com/2017/05/smallsoundbigsound-sparkle-motion.html#comment-form

However, the 10R keeps burning up when I plug it into 9V. I used a DMM to confirm that there are no ground faults, and continuity for all the pads seems good too. The diode and both electrolytic caps are properly oriented. Anybody know what might be going on here?

Original schematic for reference... http://smallsoundbigsound.blogspot.com/2011/05/sparkle-motion-schematic-and-updates.html

Thanks everyone!

The more I play with it, the more I love this pedal! Great job, BuGG!

The module8 and Octagon use the same board and BOM apparently, so swapping EEPROMs should be work no problem. Similarly, the kaleidoscope, unison, threeVerb, pythagoras, and radium springs all seem to use the same board/BOM. I was wondering if anyone has taken an unmodded Octagon and swapped in a different EEPROM - for example Unison.

I just put an Octagon together last night. Sounds good with the matching EEPROM. I threw in a Unisom EEPROM. It didn't light on fire, and it makes noises that I assume sound similar to a Unison. Just wondering if there is a fatal flaw in the schematic that would never allow a Unison EEPROM to function properly in an Octagon board.

Can't say enough good things about this pedal. I wanted to throw my Fender HRD amp in the swamp...muffled, blah sound. This pedal woke that amp up! Bright and chimy cleans. The sourcing parts was fairly simple. The build was moderately challenging, but the instructions were superb. Fired up without any trouble shooting.

125BB enclosure
JJ 12AX7 tube
No deviations from BOM

https://imgur.com/HK0sRMA
https://imgur.com/glcau05

Art is a random image off the interwebs. Laser printer/polyacrylic transfer

Nope. I didn't (intentionally) deviate from your BOM. Very nice project. Thanks for making this happen! My only very minor suggestion that would make the end user's job a bit easier would be to find a way to add 9mm board mounted pots to a revised PCB. It's a bit tricky to get the 16mm lug pots wired and into the enclosure. The stereo jack is a beast, so I moved one of the pots to the middle of the enclosure. Not sure if this made it any easier, but I was able to get everything together in the end.

TDA1022P
125BB
Mod: Stomp switches are on solder side of the board which led to confusion on my part when wiring the I/O jacks. Therefore, the I/O are on on opposite sides from a normal pedal. It actually makes it fit my board a little better in a strange way...
Sounds excellent! One small problem... weird LFO? squeally noise. Not too loud, though. Dead silent when bypassed.

https://imgur.com/u1SuUYc
https://imgur.com/SqL4nZZ

Pedal art stolen from Stacey Rozich. Color laser paper/polyacrylic transfer.