On board Nano Chorus pedal

[myonus666]

I bought a mini nano pedal, and modified it to fit in my 12 string tele thinline.

I'm actually surprised it worked.  











about a week away from stringing this up and hearing this Frankenstein.

[Marbles]

Haha, that's awesome! Great job!

[myonus666]

Thanks Marbles!

The reason I made this mess was because I was looking for a simple chorus I could place onboard in a cavity and have it available as a onboard efx.  I looked for weeks to find a reliable DIY circuit plan, but found only complicated large boards that didn't really offer any cool options.  I did find the angel chorus,  and a few others (unverified) and the risk was just too great.  Also the thought of using a PT2399 just made me sick (aaahh-choo)

After debates to abandon the idea,  I found the Donner pedal (nano) that uses micro electronics and came at a cheap price ($25 inc. shipping)  it was a no brainer.

The difficult part was the mod,  turns out there are special DPDT switch configs I had to reverse engineer,  to make a toggle work right.  And the not-so obvious 9v power which had reverse polarity than expected.  since the battery option is not available for the pedal,  I had to figure out where to place the -9v and that was a mess.  After extracting the old component hardware that was unusable,  I damaged a lot of the connections, and circuit board (micro soldering is not as easy as it seems)

Finally with the help of a jewelers magnifying headset and a microscope I was able to get a working product that could function off a 9v battery.  whew.

I guess the hardest part of this was trying to reverse engineer the circuit layout at a nano perspective.  then dealing with multi layer boards-  that were painted so I could not see the trace route of most of the components.  

Not bad for $25 and a weeks work to make it what I wanted,  that for sure.  

And to add;  the Donner product actually sounds fantastic.  And there are functions that normally would have taken up much more space than a regular chorus pedal.  All in the size of half the pack of cigarettes it took to get through it.

Winning!

Kind regards,

[Muadzin]

What's wrong with the Guitarfetish chorus mod board?

https://www.guitarfetish.com/Onboard-Chorus-From-lush-chorus-to-rotary-speaker-effects-IN-STOCK_p_568.html

[myonus666]

@ Muadzin,

Wow,  that is pretty cool!

I'm thinking this would be good for the huge cavity in my Gibson RD (the compressor/ limiter would be a nice add-on)  but I could also just make one,  with such a large cavity I could fit 3 of these boards,  size is not a problem here....


Base Model $47
shipping $9

interesting how they don't show the other side of the board.  I wonder if its a preprogrammed chip (Arduino style  )  That's the only downside I could imagine here.  No way to service :(

Thanks,  and kind regards,