PROGUE - Analog mono synth - AUDIO DEMO

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Stoneyards
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Re: PROGUE - Analog mono synth

Post by Stoneyards » Mon Jul 06, 2020 1:27 am

Me too, as an early builder... cool project.

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realitycontrol
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Re: PROGUE - Analog mono synth

Post by realitycontrol » Tue Jul 07, 2020 1:19 am

Looks amazing, nice, neat design. I'll be following this and would be down for soldering the SMD parts meself.

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Re: PROGUE - Analog mono synth

Post by LSuveg1 » Tue Jul 07, 2020 2:55 pm

I'd love to build one - I prefer SMD to through hole, so this is great.

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Fri Aug 07, 2020 5:50 am

Hi all. Just an quick update on this. The prototype had just a couple of easily fixed issues and I decided that extra testing is not needed. Also, due to Covid situation shipping times are near ridiculous, so I rather build&test them myself more efficiently. Sorry guys.

The next step towards the "release version" is to add built-in MIDI and DCDC converter for PSU (proto has header for midi-implant and 7815/7915's).

I have done a few demos, which I will post soon.

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Re: PROGUE - Analog mono synth

Post by Spliffgroen » Fri Aug 07, 2020 10:01 am

Nice! Thanks!

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Sat Aug 08, 2020 1:16 pm

Walkthrough of the prototype is in youtube:


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Re: PROGUE - Analog mono synth

Post by autodafe » Sat Aug 08, 2020 4:42 pm

any chance you would sell a PCB for this?

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Sat Aug 08, 2020 5:55 pm

autodafe wrote:
Sat Aug 08, 2020 4:42 pm
any chance you would sell a PCB for this?
There will be PCBs available once REV2 is done. Please read my post above.

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Re: PROGUE - Analog mono synth

Post by ashleym » Sat Aug 08, 2020 6:06 pm

Any chance of sync via contour as that’s a killer feature?

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Sun Aug 09, 2020 1:35 am

ashleym wrote:
Sat Aug 08, 2020 6:06 pm
Any chance of sync via contour as that’s a killer feature?
Filter envelope can modulate osc2 pitch, if that's what you mean? That's demonstrated on the video around 4:40
Last edited by JanneI on Sun Aug 09, 2020 6:03 am, edited 1 time in total.

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Re: PROGUE - Analog mono synth

Post by werock » Sun Aug 09, 2020 3:34 am

Sounds great!

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Re: PROGUE - Analog mono synth

Post by ashleym » Sun Aug 09, 2020 12:09 pm

JanneI wrote:
Sun Aug 09, 2020 1:35 am


Filter envelope can modulate osc2 pitch, if that's what you mean? That's demonstrated on the video around 4:40
I’ll watch it and learn. Thanks for replying

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Re: PROGUE - Analog mono synth

Post by Spliffgroen » Thu Aug 13, 2020 12:52 pm

Superb video!

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Re: PROGUE - Analog mono synth

Post by djs » Thu Aug 13, 2020 1:19 pm

Is the switch for octave backwards? Meaning the legend is correct, but the lowest pitch should be the switch moved to the left?
"Noise is what the Earth is made of" - David Bowie

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Re: PROGUE - Analog mono synth

Post by devinw1 » Thu Aug 13, 2020 1:41 pm

Great video Janne!

I need to get you to start doing the production on my stuff lol! Top notch!

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Thu Aug 13, 2020 1:43 pm

djs wrote:
Thu Aug 13, 2020 1:19 pm
Is the switch for octave backwards? Meaning the legend is correct, but the lowest pitch should be the switch moved to the left?
Yes, hence the name "prototype". There's also a couple of wrong taper pots on this proto just because I got frustrated with the shipping delays :-) All fixed of course for the release version.

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JanneI
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Re: PROGUE - Analog mono synth

Post by JanneI » Sun Sep 06, 2020 1:12 pm

Progue REV2.0 is on the drawing table. Component count so far: 932 :party:

I'm hoping to finish this in a week or so, and get it tested in a month. If all goes well this should be available for purchase by the end of the year. The BOM is 90% ready, but I don't have an estimate of the costs yet. More videos to come later! :sb:
ProgueREV2PCBdesigning.png

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by djs » Sun Sep 06, 2020 2:15 pm

Are you selling it as a bare pcb or with some components on it already? Anything weird/rare on it?
"Noise is what the Earth is made of" - David Bowie

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JanneI
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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by JanneI » Sun Sep 06, 2020 2:46 pm

djs wrote:
Sun Sep 06, 2020 2:15 pm
Are you selling it as a bare pcb or with some components on it already? Anything weird/rare on it?
Probably both, but at least bare PCBs. Nothing rare really, but some components needs to be purchased from other than mouser. It's mostly SMD, so it's going to be a medium level SMD task, or if I'll also get a SMD pre-soldered version it's a really easy through-hole project. I do need to make an "interest check" when once first REV2.0 proto is working if I'm going to order a pre-soldered run.

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by djs » Mon Sep 28, 2020 7:51 am

Bump- just wondering how this is going? :)
"Noise is what the Earth is made of" - David Bowie

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by DCDanno » Mon Sep 28, 2020 8:08 am

Wow, nice job JanneI! Just seeing this, I'm in for a bare PCB, but if you end up doing the SMD pre-soldered version, I'll go with that.

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by MoyaMoya » Mon Sep 28, 2020 8:12 am

Would be interesting to incorporate the polyohony function of MG-1 :love:

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JanneI
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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by JanneI » Fri Oct 02, 2020 6:08 pm

Näyttökuva 2020-10-3 kello 1.39.14.png
A quick update: I've been too busy with work-related stuff, but REV2 board is finally getting done. Still some component details to verify, BOM optimizations to be done, but I should be ordering these REV2 protoboard in a couple of days. I'll keep you posted!

Compared to REV1, the REV2 has:
- DCDC converter based PSU with separate regulated rails for MCU & DAC
- Built-in midi
- Dip switches for: midi ch, priority mode, re-trig/legato, ModWheel/AT
- Panel Switch for ModWheel/AT (LFO amount) routing to VCO, VCF, Both
- Small adjustments on the analog side
- A separate output board for the back panel connectors
- ..and maybe a bonus or two! ;)

As you can probably see from the picture, there's a couple of really small SMD components (ie. DAC), so PCB only option is not suitable for beginners. Let's see if I'll do a pre-soldered SMD version for sale, because then this project will be pretty easy DIY project!

-Janne

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by djs » Fri Oct 02, 2020 6:46 pm

looks great! How small are the SMD DACs? 0805? 0402?
"Noise is what the Earth is made of" - David Bowie

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Re: PROGUE - Analog mono synth - AUDIO DEMO

Post by KSS » Fri Oct 02, 2020 7:25 pm

See U28 in the pic. Between the 2nd and 3rd pot in the upper row. Compare it with the others bigger nearby.
DAC is an IC. The sizes you listed are for discrete parts like caps and resistors.

edit: technically the 3rd and 4th pot as there's one far left in that row

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