[sdiy] PLL examples

[David Moylan]

Yeah, I built this one on a protoboard.  A compressor in front helps a
lot, but still I didn't have good luck with it holding pitches.  Noise
from the guitar would gate the PLL tracking circuit and it would 'freak
out'.

Dave

Colin Raffel wrote:

> That one is a good example, but I personally like the slightly more 
> complex one here:
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%201.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%202.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%203.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%204.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%205.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%206.jpg
> http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%
> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%
> 20Page%207.jpg
>
> It is an article from a magazine, and it has no distortion circuit 
> and lots of room for features and improvement.  I always thought it 
> would be interesting to put a pulse wave into the trigger in so that 
> it tracked at any rate-sort of like a sample-pitch-and-hold-it for a 
> guitar or any instrument.
>
> -Colin
>
> On Jan 5, 2006, at 1:54 PM, Loscha wrote:
>
>> A little unusual, but, the the Boss DF-2 uses a CD4046 to generate  a
>> sine wave an octave or two above your input tone to simulare  feedback
>> http://experimentalistsanonymous.com/diy/Schematics/Distortion%
>> 20Boost%20and%20Overdrive/BOSS%20DF2.pdf
>>
>>  You should be able to Dx7 style FM with a couple PLLs, but, I  might
>> be wrong on that one.
>>
>> On 1/6/06, amokan <amokan at gmail.com> wrote: Can anyone recommend  any
>> 'quick and dirty' PLL examples related to music circuits on the  web?
>>
>> thanks.
>>