[sdiy] Thru-Zero, was as3340 PW/tuning issue

[Adam Inglis]

Thanks Colin
Someone in that thread says they would love a "through-zero version”.

Seems to be a lot of talk about TZ all over these types of forums - why? What’s the big deal? How are these different from the VCOs in my Roland, Korg and Sequential synths?

Sure I could google but I know I’d get better education here ;-)

Adam



> On 5 Jan 2020, at 6:26 am, ColinMuirDorward <colindorward at gmail.com> wrote:
> 
> Just a note to say thanks to everyone contributing to this conversation. I've applied lots of what I learned here to my design, and I've got the PWM/pitch interaction down to what I think is an acceptable minimum. Anyways, it's nothing special, but I've started a build thread over at muffs <https://www.muffwiggler.com/forum/viewtopic.php?f=17&t=225670>, for anyone who needs yet another low cost 3340 vco. I need several, so thought I may as well go public in case anyone else does, too. I'll be using JLCPCB assembly for all the resistors and caps, and the rest will be through hole at home. I have lots of as3340s, so can include with the PCB if anyone needs. 3340 is running on +10/-5, so the circuit should be at home in 12v or 15v setups. I'm in Yukon, Canada.
> Thanks,
> Colin
> 
> On Fri, Jan 3, 2020 at 12:39 PM David G Dixon <dixon at mail.ubc.ca <mailto:dixon at mail.ubc.ca>> wrote:
> The Intellijel Rubicon (and Rubicon-2) gives the option of generating pulse waves from Triangle, Saw, or Double-Saw (twice the frequency).  It’s not a whole synth, just a TZFM VCO.
> 
>  
> 
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> 

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