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LP Pitch Input CV (mod?)

Posted: Tue Jun 21, 2011 11:46 am
by dualaud
Hey there,

I read the Pitch CV input on the Little Phatty is not normalized to 1V/Oct.
Found this out, by trying to sequence the Little Phatty from an analog sequencer with rock solid 1V/Oct, and verified this by using a MIDI->CV interface and playing on a MIDI keyboard to the LP.

Is there any modification to bring the Pitch CV input to 1V/Oct spec, so it tracks Pitch CV input correctly over 3 octaves? Now it doesn't even track 1 octave correctly.
Very frustrating in a modular environment. But I freaking love this thing.
I work in an audio lab with all the necessary equipment for calibration and installation, so please hit me with tech talk.

Amos to the rescue? :)

Thanks,
dual

Re: LP Pitch Input CV (mod?)

Posted: Tue Jun 21, 2011 12:08 pm
by Sir Nose
I would email or call moog tech support directly. I think it can be done. Trimmer or resistor to knock down the incoming cv.

You could probably put together a short cable with a trimmer with a female and male end and not even need to mess with the insides. If so, moog should design and market such an adaptor. Kinda like the step adaptor.

Re: LP Pitch Input CV (mod?)

Posted: Tue Jun 21, 2011 12:31 pm
by Amos
there are multiple places in each oscillator to install trim pots to allow full analog calibration.
Or get a Tribute Edition LP, which has all these trimmers already installed (score 1 for the LPTE ;))

but yes, this is doable... might contact techsupport at moogmusic dot com for more info, perhaps we can even sell you the trimmers if we have them on stock.

Re: LP Pitch Input CV (mod?)

Posted: Tue Jun 21, 2011 12:39 pm
by dualaud
Thanks guys!
Right on!