That "Mini Synth" was a project in a series of educational projects "Dick Smith Electronics" had in the mid/late 80s through to early 90s. They were commonly available, and there would be several thousand of those in various states of functionality across the country, I'm an Aussie, but, I've never had the fortune to find one.
<br> I'm ready, though, cause I have the original book here. That's the only muscial project in it, though, sadly :|<br>It is an interesting project, that displays a wide gamut of uses for the 4046. If used correctly, I'm sure the 4046 could be a secret weapon of synthesis, it's got a high bang-per-buck ratio.
<br><br>-ed<br><br><div><span class="gmail_quote">On 1/6/06, <b class="gmail_sendername">David Moylan</b> <<a href="mailto:dave@westphila.net">dave@westphila.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Yeah, I built this one on a protoboard.  A compressor in front helps a<br>lot, but still I didn't have good luck with it holding pitches.  Noise<br>from the guitar would gate the PLL tracking circuit and it would 'freak<br>
out'.<br><br>Dave<br><br>Colin Raffel wrote:<br><br>> That one is a good example, but I personally like the slightly more<br>> complex one here:<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%201.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%202.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%203.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%204.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%205.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%206.jpg<br>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%">
http://experimentalistsanonymous.com/diy/Schematics/Guitar%20Synth%</a><br>> 20and%20Misc%20Signal%20Shapers/Mini%20Synth%20like%20Super%20DF-2%<br>> 20Page%207.jpg<br>><br>> It is an article from a magazine, and it has no distortion circuit
<br>> and lots of room for features and improvement.  I always thought it<br>> would be interesting to put a pulse wave into the trigger in so that<br>> it tracked at any rate-sort of like a sample-pitch-and-hold-it for a
<br>> guitar or any instrument.<br>><br>> -Colin<br>><br>> On Jan 5, 2006, at 1:54 PM, Loscha wrote:<br>><br>>> A little unusual, but, the the Boss DF-2 uses a CD4046 to generate  a<br>>> sine wave an octave or two above your input tone to simulare  feedback
<br>>> <a href="http://experimentalistsanonymous.com/diy/Schematics/Distortion%">http://experimentalistsanonymous.com/diy/Schematics/Distortion%</a><br>>> 20Boost%20and%20Overdrive/BOSS%20DF2.pdf<br>>><br>
>>  You should be able to Dx7 style FM with a couple PLLs, but, I  might<br>>> be wrong on that one.<br>>><br>>> On 1/6/06, amokan <<a href="mailto:amokan@gmail.com">amokan@gmail.com</a>> wrote: Can anyone recommend  any
<br>>> 'quick and dirty' PLL examples related to music circuits on the  web?<br>>><br>>> thanks.<br>>><br><br></blockquote></div><br>