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it will be my 3th Collosalus !

How about a Madbean theremin?

+1

Merry Christmas from Brussels !!!

...this is the first time in my life that I feel like a winner !!! got a Laserwolf, Dirtbaby and Cherrybomb...
I wonder what the Hot Toddy project is...

I think it would be easier to socket those caps, or build two King Tut...it's not an expensive project after all...or try fist in a vero layout and see wich one you like more.

Regards from Brussels, city of riots.

hi !
I have 2 King Tut builded, one with 47nF and the other one with 470nF. What I can tell is the first one (rullywowr's version) sound pretty good, lows are tight and maybe a little less agresive than the 470n version...this one (.47µF) sounds similar to the demos you find in youtube, more agresive, and with a lot more bass...in general very "brut"...I can't make a sound sample (and even if I could I wouldn't do it, because my guitar playing sucks more than my english ), but in the end, which one tends to sounds more like the original? I guess the .47µF version. Which one I prefer?...for my taste, the rullywowr's one, without the no clipping option (too loud for me).

I was looking for the same mod for one of my Moosapotamus's A/DA clones, like the "take of" switch in Paul Gilbert"s signature flanger...
Thanks for the idea !!!

hey Jacob !
Thanks for your answer...I guess I'm going to build it with a 500kA and 100kB since I don't have any 500kB left.

Hello everybody !
...I was just about to put together a Green Bean when I realize that in the BOM the drive pot is 500k B, in most TS project that I build drive pot is 500k A...The same with the level pot which is 100k A when usually is a 100k B...Is it better this way? I'm a little confused here...

thanks !

Hi Garfo !
I guess that you have soldered the rotary switch to the wrong side...take a look to the ZP build guide :

http://www.madbeanpedals.com/builds/reports/zpsdx/index.html

good luck 

...and I learned what an audio probe is and how to use it !
I have to say that this boards are very good quality, I have soldered and desoldered and soldered back several components which can be tricky in a double sided PCB...
I guess I'll sleep peacefully tonight.

thanks ! yes, it feels good !
What did I learn from this ? well...never build something difficult when my wife is talking to me... 

...et voilà !!!
Yesterday evening I took all pots off to see if I could find something and nothing...so I decided to desolder every electrolytic , diode, and check again all the rest of the caps...Today, after work I found the problem : I put a 10nF in place of a 100nF for C26...
I feel super stupid and happy at the same time...It took me only 30 minutes to put all together...and voilà : my second Zero Point SDX works and sounds as good or better than the first one !!!

Thank you for your help,

Pierre

...no, my fdbk pot is a 50Kb...and yes, modulation is working...rate led blinks and all... with the mod switch engaged  the distorted motorboarding noise gets some sort of modulation, that varies as I turn rate and depth pots...After checking all resistors values and looking for shorts and solder bridges I think I have 2 things left to check...all caps and diodes. I have changed some electrolytic and those 10µF tantalum, just to see if the problem was there, I guess I have to remove pots to test the rest of the caps...I don't know how to check for the diodes, they are all 1n914.
Right now I'm comparing values with diodes installed in the working ZPSDX...all of them are around 0.560v in my multimeter...don't see anything strange here...

I have done some more testing...change all ICs and transistors and the problem still there...
One thing that I've noticed is that the feedback pot goes from 1 dirty repeat when is full turned off to self feedback (I really don't know how to put it in words) when I turn it just a little (like at 9:00)...more exaggerated when ghost is on...I should post some sound samples but right now it's a little complicated...
Next thing I'll do is take off Delay and Fdbk pots to change some caps...I don't know, I'm lost here