[sdiy] IN-13 Bargraph VU Meter

Oren Leavitt oleavitt at proton.me
Sat Feb 28 18:57:04 CET 2026


Cool!
That looks tempting to me. I have a couple of those THAT4301 analog 
engines that I bought some years ago. I was originally intending to 
build a vocoder around THAT4301s but the chips were discontinued.

On 2/28/26 10:50 AM, Terry Bowman via Synth-diy wrote:
> Does anyone have the PCB art for this?
> 
> http://m.bareille.free.fr/vu-in13/vumeter_in13.htm <http:// 
> m.bareille.free.fr/vu-in13/vumeter_in13.htm>
> 
> 
> I have a pile of IN-13s and I’d love to build one. Laying out a board is 
> beyond my capabilities.
> 
> Is Marc still around?
> 
> 
> Terry Bowman, KA4HJH
> "The Mac Doctor"
> 
> https://www.astarcloseup.com <https://www.astarcloseup.com>
> 
> "I’ve seen things you peoplewouldn’t believe. Attack ships on fire off 
> the shoulder of Orion. I watched c-beams glitter in the dark 
> near Tannhäuser Gate.
> 
> "All those moments will be lost in time like tears in the rain."— Roy 
> Batty, /Blade Runner/
> 





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