Search found 133 matches

by e3p0
Fri Apr 26, 2019 9:15 am
Forum: Announcements - Please read!
Topic: Mike has passed away.
Replies: 917
Views: 115240

RIP. Condolences. This is an amazing community and would not have been possible W/O Mike.

Maintain his Legacy.
by e3p0
Sun May 14, 2017 12:11 pm
Forum: Music Tech DIY
Topic: Werkstatt - Breakout box
Replies: 3
Views: 648

His mods are different. He doesn't have wires coming out from the + - 9V. The LFO "mod" is just a patch so that is easy. His tuning was only an attenuator to divide the voltage CV out into CV in of second Werkstatt (not the fine tune mod). His volume mod is, again an attenuator. Just a pot in series...
by e3p0
Fri Apr 21, 2017 5:35 pm
Forum: Music Tech DIY
Topic: SMD BETA TESTERS WANTED AGAIN!
Replies: 20
Views: 1220

These look cool. Are there plans for panels also? Thanks
by e3p0
Tue Apr 18, 2017 5:49 pm
Forum: Music Tech DIY
Topic: [New version available] Buffered Multiple PCBs/panels
Replies: 111
Views: 10391

Looks right. Thanks! 10 pin http://www.mouser.com/ProductDetail/3M/30310-6002HB/?qs=%2fha2pyFaduirDmz5p9UEK%252bcRxi6dSRb3D6xDz2tZxvr3cFtmPyu25g%3d%3d 16 pin http://www.mouser.com/ProductDetail/3M/30316-6002HB/?qs=%2fha2pyFaduirDmz5p9UEKxQmwDwkeJkXlcpx%252bsPUQGKegZVSjqHSEA%3d%3d (I think) :sb:
by e3p0
Mon Apr 10, 2017 7:25 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

I did exactly the same thing. I tried both the individual and the combo boot loader firmware files. Oh well. My first attempt is about completely jacked up from troubleshooting. I ordered a complete redo and will try again. If I have the same issues I will try your suggestions. I still feel like it ...
by e3p0
Thu Apr 06, 2017 6:09 pm
Forum: Music Tech DIY
Topic: Basic LFO PCBs
Replies: 39
Views: 11617

pieca wrote:Just builded 3 of them on breadboard, works really great
Did you notice the square wave being considerably louder?
by e3p0
Thu Mar 30, 2017 2:32 pm
Forum: Music Tech DIY
Topic: Sloth Chaos PCBs & Panels available
Replies: 343
Views: 29000

Does anyone know if the Mouser BOM fro triple sloths is correct? I know no jacks, pots..., but everything else okay?

http://www.mouser.com/ProjectManager/Pr ... 3479187742
by e3p0
Sat Mar 25, 2017 9:15 am
Forum: Music Tech DIY
Topic: [GROUP BUY] $10 2HP mult PCB + Panel
Replies: 43
Views: 2036

jgoney wrote:Did I understand correctly that you still have some of these? I could be interested in picking up a couple.
viewtopic.php?p=2504402&highlight=#2504402
by e3p0
Thu Mar 23, 2017 3:20 pm
Forum: Music Tech DIY
Topic: [BUILD] AT-AT-AT - Triple Passive Attenuator Module Kit
Replies: 28
Views: 9330

Hello. I was wondering if you would repost the build guide or sell these panels in the future. I followed the link to the build thread and the link to the guide is gone.

Thanks!

Edit: I saw that the current version of the kit is s pcb and I saw the (old and) instructions on Thonk.
by e3p0
Wed Mar 22, 2017 5:43 pm
Forum: Music Tech DIY
Topic: [GROUP BUY] $10 2HP mult PCB + Panel
Replies: 43
Views: 2036

Thank you sir
by e3p0
Sun Mar 19, 2017 9:31 pm
Forum: Music Tech DIY
Topic: Basic LFO PCBs
Replies: 39
Views: 11617

I just built two of the Roland system 100 LFOs. Both square outputs are considerably hotter.

Wondering if it is just me...
by e3p0
Sun Mar 19, 2017 2:22 pm
Forum: Music Tech DIY
Topic: Basic LFO PCBs
Replies: 39
Views: 11617

Here's a stripboard layout of the System 100 LFO. This specific layout is untested so use at your own discretion. I'm using a version which is 98% the same. http://www.baud-rate.com/Roland_LFO02.jpg Built this weekend, works like a charm. The only mod is that I've added 2x10uF and 2x100nF after the...
by e3p0
Sun Mar 19, 2017 8:57 am
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

Thanks again for all of the help. Either way, I need to take a break from this one. At some point I will pick it back up and look at it with fresh eyes (or hulk smash it in a fit of rage)
by e3p0
Sat Mar 18, 2017 9:06 am
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

The codec. I was probing ins and outs for DC voltage. Saw a little puff.
by e3p0
Sat Mar 18, 2017 8:17 am
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

I was poking around and saw a puff of smoke. now nothing at either TL072 except +- 12v. The 4.7 resistor looks charred, but still measures 4.7 ohms. IC2 now gets very hot. I am going to back burner this one. I'll order another kit and try again. Not discouraged, as my initial concern was being able ...
by e3p0
Fri Mar 17, 2017 7:32 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

That is the WM8731? It looks good.
Pin 12 has continuity to c33 and pin 13 to c41 all the way to input pins of ic10
by e3p0
Fri Mar 17, 2017 3:11 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

Thanks. IC9 has +12v (11.7) at pin 8 -12v at pin 4 so does IC10 feeding left input 3v noise IC9 measures around -6v at pin 1 and 7 with input pot fully cw. -0.3v with pot fully ccw (and 0v when no input connected) pin2 measures 0.11v pin 3 gnd pin 5 gnd pin 6 0.11v IC10 only shows voltage at pin 8 a...
by e3p0
Fri Mar 17, 2017 1:52 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

Ok. Thanks. The resistor values and placement have been double checked. Any thoughts on a bad tl072?
by e3p0
Fri Mar 17, 2017 1:22 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

Thanks! I did check all resistor values. All are correct.
by e3p0
Fri Mar 17, 2017 12:51 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

So R48 and R49 are indeed 39k. I have fluxed and reflowed, cleaned and re examined. Stumped. Bad TL072?

I am now just checking for shorts to ground.
by e3p0
Fri Mar 17, 2017 7:05 am
Forum: Music Tech DIY
Topic: Does anyone use dental/surgical loupes for DIY?
Replies: 14
Views: 1234

Altitude909 wrote:Donegan Optivisor.

I tried the dental loupes and found them really unwieldy, the focal point is too far away for electronics work IMHO
What power are yours? I see they are available in several.
Thanks.
by e3p0
Tue Mar 14, 2017 5:36 pm
Forum: Music Tech DIY
Topic: [GROUP BUY] $10 2HP mult PCB + Panel
Replies: 43
Views: 2036

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by e3p0
Tue Mar 14, 2017 5:25 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

you could check the values of the feedback resistor pairs on your output opamps The output opamp is ic10 right? So R49 and R48. I am fairly certain of all of the values. If I was to check them, I would need to remove them from the circuit, correct? I need to reexamine the build under magnification/...
by e3p0
Mon Mar 13, 2017 8:39 pm
Forum: Music Tech DIY
Topic: [GROUP BUY] $10 2HP mult PCB + Panel
Replies: 43
Views: 2036

Got them. Built them. Racked them. Thanks!
by e3p0
Mon Mar 13, 2017 7:50 pm
Forum: Music Tech DIY
Topic: Mutable Clouds diy... files on the git repository.
Replies: 952
Views: 96155

I also tried to load firmware with wav file and following the procedure in the manual (hold freeze at powerup). The freeze flashes but input gain made no change to any leds there either.

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