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digitech pds 2 second delay mod. more time???
Posted: Sat Nov 10, 2012 5:07 pm
by fluffytunapouch
Does anyone know if I can mod this to get more delay time????/
I've seen people modify other models (multi-play) to get more delay time, and it'd be killer to get some more times on this too.
Re: digitech pds 2 second delay mod. more time???
Posted: Sat Nov 10, 2012 7:19 pm
by Bellyheart
I think it's just adjusting a trimpot from what I recall.
Screwdriver is the only tool you'll need.
Re: digitech pds 2 second delay mod. more time???
Posted: Sun Nov 11, 2012 11:49 am
by eatyourguitar
I was starring at the schematics for a while. trimmer P3 is a 50k to ground with a 2m resistor pulled up. the speed pot sends a DC control voltage through this trimmer. the trimmer attenuates it. after the next opamp, there is a voltage controlled oscillator made from a hex inverter. here a 74AC04 is used. this is similar to a CD40106. you can replace any square wave osillator with any other square wave oscillator. if the trim pot won't get it as slow or fast as you like, you could hack it with an arduino to have an LCD display and presets. you could even add an LFO in the arduino. you could use a LMC555. anything really.
Re: digitech pds 2 second delay mod. more time???
Posted: Sun Nov 11, 2012 5:19 pm
by fluffytunapouch
nice.... I'm going to have to do some research on this beast. Not to savvy yet on the mods yet
Re: digitech pds 2 second delay mod. more time???
Posted: Mon Nov 12, 2012 12:33 am
by Bellyheart
Seriously, I think you just need a screwdriver. No soldering or component swapping necessary.
Re: digitech pds 2 second delay mod. more time???
Posted: Mon Nov 12, 2012 1:57 am
by devnulljp
Twiddle with the trimpots, you'll fuck it up guaranteed.
Best way is to sell it and buy a PSD8000
