traktop wrote
I've built It, and is insane!
Even just because of the unique fuzz voice is worth It.
The theremin is great, but I was wondering if there is something I could play with, (filtering or gain stage I guess) , in order to improve the tracking with my p90/ les paul and strat guitars. I've tried with both neck pick ups with the tone control rolled off and just seemed to track reasonably on the first 3 strings, from 3th to about 15th fret.
The sensitivity didn't seem to help here as the important stuff seemed to be happening before It.
I've built 4 boards and all of them seemed to behave more or less the same way. Maybe I could try replacing the "theremin" chip by new ones and see , but I dont know which is It.
Cheers Gilberto.
Hey Gilberto,
I just noticed your comments in this thread. Ops... Sorry for not replying sooner.
The notification emails must have been lost in my messy inbox..
You can improve the tracking slightly by putting a 1nF-2.2nF cap across the 2.2M resistor. This will make you able to dial down the threshold for the schmitt trigger (the trimmer) alittle bit aswell without the circuit going into sputtery oscillation, and the closer you have the trigger to where it starts to make noise, the better is the sustain. Other than that, the best thing to do is to add a boost at the input, and maybe a simple RC lowpass filter after the boost (like a 10K in series with a 10nF-100nF cap to ground).
BTW, awesome demo. Thank you for sharing. :)
Best regards
/ Fredrik
check out my building blog at www.parasitstudio.se