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by Flounderguts
Thu Jan 21, 2021 11:46 am
Forum: Music Tech DIY
Topic: Soma - LYRA-8 DIY Kit
Replies: 836
Views: 85621

Re: Soma - LYRA-8 DIY Kit

Ladies and Gentlemen.... I have begun my teardown of a factory Lyra-8. Surprise, motherfucker! It's not really the same as the DIY kits. Control and IO boards are V 3.3, and main board is V 3.4 Much of it seems to be for simplifying production...the switches and pots are NOT mounted to the backplane...
by Flounderguts
Wed Jan 20, 2021 11:57 pm
Forum: Buchla, EMS & Serge
Topic: 4U / LW format questions (possible new modules)
Replies: 16
Views: 513

Re: 4U / LW format questions (possible new modules)

My solution has been to provide encrypted, watermarked schematics to those people that request them. I do it in such a way that a leaked schematic can be traced to a given individual. So far, no leaks! Because people who do clandestine stuff like stealing schematics of circuits that are not advertis...
by Flounderguts
Wed Jan 20, 2021 11:30 pm
Forum: General Gear
Topic: Sonic Potions LXR Drum Synthesizer
Replies: 293
Views: 58536

Re: Sonic Potions LXR Drum Synthesizer

Are they shipping? Last I looked it said no shipments until further notice...
by Flounderguts
Wed Jan 20, 2021 11:07 pm
Forum: Music Tech DIY
Topic: Soma - LYRA-8 DIY Kit
Replies: 836
Views: 85621

Re: Soma - LYRA-8 DIY Kit

Yep. There are pads marked for power and headphone jack. I'm still stuck north of the border, but I decided (since I have a lot of time while waiting for things to happen) to buy a factory Lyra-8, and it arrived today. I'm going to pull it apart and see what the differences are between factory units...
by Flounderguts
Wed Jan 20, 2021 11:00 pm
Forum: Music Tech DIY
Topic: Lyra-8 DIY expansion and panels
Replies: 96
Views: 3466

Re: Lyra-8 DIY expansion and panels

You're not wrong, if you are working from Vlad's original "tweaks" document.

The mods I made were based off a board the same as you are building. I'm pretty sure I covered that in the build guide, but if you don't see it, send me an edit!
by Flounderguts
Wed Jan 20, 2021 3:41 pm
Forum: Guitars, Basses, Amps & FX
Topic: Old rackmount delays
Replies: 48
Views: 1213

Re: Old rackmount delays

That 606 looks like a fun beast!

Alas, $800 seems like the going rate.
by Flounderguts
Wed Jan 20, 2021 3:37 pm
Forum: Music Tech DIY
Topic: Vertical dual-gang concentric pots
Replies: 3
Views: 119

Re: Vertical dual-gang concentric pots

OMW! You're right. I never noticed that they were 90 deg PCB mount, as I used them on a 5u panel, so the mounting direction was immaterial. A quick look through my Alpha, Taiwan Alpha, MEC, B-E, and Daier catalogs shows no standard part numbers for a vertical concentric pot. I know you coukd have th...
by Flounderguts
Tue Jan 19, 2021 11:58 pm
Forum: Synth Drone
Topic: Leaving the rack: Drone synths!
Replies: 5
Views: 210

Re: Leaving the rack: Drone synths!

Watch out, though... it's a slippery slope from these synths to contact microphones and the wild n' wacky world of acoustic droning. :foul: Tru dat! I'm really into the Lyra DIY stuff, and I make the expansion panels for them. I also have a lot of home built drone machines, such as 555 based stuff ...
by Flounderguts
Tue Jan 19, 2021 11:33 pm
Forum: Music Tech DIY
Topic: Vertical dual-gang concentric pots
Replies: 3
Views: 119

Re: Vertical dual-gang concentric pots

Small Bear Electronics has some. They use non-standard shaft sizes, but they also supply the right knobs for them.

Small Bear Concentric Potentiometers
by Flounderguts
Tue Jan 19, 2021 11:20 pm
Forum: Music Tech DIY
Topic: Soma - LYRA-8 DIY Kit
Replies: 836
Views: 85621

Re: Soma - LYRA-8 DIY Kit

Hey collective, first time poster, long time lurker. Firstly thank you for all the incredible insight and learnings in this thread. You've given me a heap of direction on how to get started on this project. Excuse the question if it's dumb, I'm still a bit of a DIY novice. What is the rationale for...
by Flounderguts
Tue Jan 19, 2021 7:05 pm
Forum: General Gear
Topic: Behringer 2600
Replies: 491
Views: 31747

Re: Behringer 2600

Available for preorder...very very tempted.
by Flounderguts
Tue Jan 19, 2021 5:32 pm
Forum: Music Tech DIY
Topic: Soma - LYRA-8 DIY Kit
Replies: 836
Views: 85621

Re: Soma - LYRA-8 DIY Kit

CONTACT pads. Any bare metal will work...even a bolt!

The DIN 653 screws are getting scarce. Try computer mod shops, as they often stock thumbscrews in M3.

I have some standard panels on the way that eliminate the DIN screws in favor of gold circuit touchpads.
by Flounderguts
Tue Jan 19, 2021 5:28 pm
Forum: Music Tech DIY
Topic: Lyra-8 DIY expansion and panels
Replies: 96
Views: 3466

Re: Lyra-8 DIY expansion and panels

Yes. Where a resistor or cap would be "tweaked," those leads go to a switch or potentiometer on the wings. There are switches on the wings that use the original values, so you can still play a "stock" Lyra-8 DIY. On the voice switches, there are electrolytic caps, so make sure you have the grounded ...
by Flounderguts
Fri Jan 15, 2021 9:01 am
Forum: Music Tech DIY
Topic: Experience with cheap panel manufacturer in china?
Replies: 11
Views: 351

Re: Experience with cheap panel manufacturer in china?

Instead of searching for a panel manufacturer, i suggest working with a company that does enclosures and extrusions. They offer all of the processes needed (anodize, machine etch, laser etch, drag etch, silkscreen, direct print, finish, inlay) and are usually happy to work on flat panels. Setup cost...
by Flounderguts
Tue Jan 12, 2021 10:43 pm
Forum: General Gear
Topic: Yoga Blocks as Speaker stands
Replies: 17
Views: 515

Re: Yoga Blocks as Speaker stands

I like milk crates. Same same.
by Flounderguts
Tue Jan 12, 2021 10:41 pm
Forum: Music Tech DIY
Topic: Kikad pcb layout to front panel
Replies: 7
Views: 209

Re: Kikad pcb layout to front panel

You can "plot" a layer to dxf. Results vary. If you have a way of converting a gerber to dxf, KiCad saves the drill locations in the .drl file, gerber format. I have had some luck using fusion to import the drl and export to any one of a number of other formats, but again, results vary. KiCad is pre...
by Flounderguts
Tue Jan 12, 2021 10:33 pm
Forum: Music Tech DIY
Topic: Soma - LYRA-8 DIY Kit
Replies: 836
Views: 85621

Re: Soma - LYRA-8 DIY Kit

Interesting! That sounds very similar to what I was working on before I had to shelve the project to work on some music commissions. I wouldn't think that an indicator for the gate would add a lot of complexity but I was trying to implement the idea with either optocouplers or buffers to keep the s...
by Flounderguts
Mon Jan 11, 2021 11:23 pm
Forum: Music Tech DIY
Topic: Lyra-8 DIY expansion and panels
Replies: 96
Views: 3466

Re: Lyra-8 DIY expansion and panels

Not positive, but there are basically 4 quad opamps on board...3 TL074 and one TDA2822. There are some summed voices there, and I think they go to the pins marked FMxx, and then to mixdry1 and mixdry2. Then it goes through the filter circuit, and then to final out. The mixing balance seems to be at ...
by Flounderguts
Mon Jan 11, 2021 6:23 pm
Forum: Music Tech DIY
Topic: Vias on pads at JLC assembly
Replies: 9
Views: 282

Re: Vias on pads at JLC assembly

I just spoke to my JLC rep. He told me they have 3 different manufacturing facilities, and the newest one will not do vias on the pads...something to do with a new reflow process that uses a less viscous solder formula for environmental reasons. In other news, they agreed to fold and fix a set of pc...
by Flounderguts
Mon Jan 11, 2021 12:03 pm
Forum: General Gear
Topic: Great table lamps - give me your ideas!
Replies: 19
Views: 558

Re: Great table lamps - give me your ideas!

I like Ikea Jansjo lamps. I rip the bases off and drill a shallow hole to set them in, so it's just a hard mounted gooseneck.

Super durable, go where they are told, not too bright, warm light, and cheap as nails.

Don't use the USB ones...the bending of the lights destroys PCB connections.
by Flounderguts
Mon Jan 11, 2021 11:53 am
Forum: Music Tech DIY
Topic: Vias on pads at JLC assembly
Replies: 9
Views: 282

Re: Vias on pads at JLC assembly

Yes, but it works anyway. I would not do it normally, just because I like to see where the vias are. But there is no reason not to on a modular synth, as long as you aren't assembling with a relatively small-ball solder paste. If you're using hard solder, it should be fine. Having said that, if JLC ...
by Flounderguts
Mon Jan 11, 2021 11:49 am
Forum: Synth Noise
Topic: revisiting noise/drone machines
Replies: 3
Views: 197

Re: revisiting noise/drone machines

DIY drones are fun to build, and far easier on the pocketbook than tweaking existing synths past their resale value. I think my favorite genre is self-resonating philtres, followed by granular samples turned to audio rate. Over the years, I have found that too many knobs to turn is less inspiring th...
by Flounderguts
Sun Jan 10, 2021 8:35 pm
Forum: Music Tech DIY
Topic: Lyra-8 DIY expansion and panels
Replies: 96
Views: 3466

Re: Lyra-8 DIY expansion and panels

I had one other thought: From a musicality perspective, I find myself wanting direct outs, even just for voice pairs. Maybe an idea for a V2 I/O panel or an expansion panel? I'm in the process of building Kijimi, and am having some of Janne's PCBs made for individual voice outs and a stereo output ...
by Flounderguts
Sun Jan 10, 2021 4:30 pm
Forum: Music Tech DIY
Topic: Which soldering iron to get started?
Replies: 19
Views: 274

Re: Which soldering iron to get started?

I discovered that using a brass sponge to the point of saturating it with solder actually allows me to tin the tip just by rolling the tip in the bottom of the holder. I still use a tin tipper product at the end of a long session before shutting down. On the 888 can you use the heat gun to desolder...

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