Search found 2787 matches

by elmegil
Fri Apr 03, 2020 12:52 pm
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

Photos?

I would triple check about that jumper too. I mean no disrespect--I have been absolutely convinced I had things set up correctly, multiple times even, only to find that when I looked at it one more time I had it backwards in some fashion.
by elmegil
Fri Apr 03, 2020 10:29 am
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

BTW it occurs to me.... is there any chance that when you flipped the PCB over to solder your jumper, you confused A1 and B8?
by elmegil
Fri Apr 03, 2020 10:25 am
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

For the 14 x 0.1uF caps on the analog board that are all supposed to me ceramic, I've used film Film caps won't have any impact here. That should be just fine. The problem is between your switch and the digital board anyway. I hate to say it, but I think you're going to have to pull the big switche...
by elmegil
Wed Apr 01, 2020 2:58 pm
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

So that's "switch 16" in the schematics. It connects to pin 23 of U7 on the digital board section. It's pulled up by R16, and when the switch is closed (in the DOWN position!), it's supposed to ground the connection. So the middle pin of the switch should be grounded. Verify that. If it is grounded ...
by elmegil
Wed Apr 01, 2020 11:44 am
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

Switch B8 measures fine for continuity. Just to be 100% sure: when the switch is up, you *only* have continuity between the bottom pin and the middle, and when it's down, you *only* have continuity between the top pin and the middle ? Step B8 is always active regardless of whether or not the toggle...
by elmegil
Wed Apr 01, 2020 8:44 am
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

Double check that your switch for B8 is actually switching correctly (power off, flip the switch to different positions, measure continuity between the pins and the center. Probably should have all the other switches in center position first). As for pot B1, I would measure what it's doing at the po...
by elmegil
Wed Apr 01, 2020 8:41 am
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 878
Views: 62269

Re: ARP 1601 clone Build Thread

Make sure you go through the calibration steps before you get too worried. I had oscillators that wouldn't go at all until I got the trimmers adjusted.
by elmegil
Wed Apr 01, 2020 8:39 am
Forum: Music Tech DIY
Topic: 73-75 Serge panels from Zthee
Replies: 436
Views: 53727

Re: 73-75 Serge panels from Zthee

Oh, 250Hz minimum? Yeah that's definitely too fast. All three do the same? I'd double check the caps for value and shorts.
by elmegil
Tue Mar 31, 2020 10:40 pm
Forum: Music Tech DIY
Topic: 73-75 Serge panels from Zthee
Replies: 436
Views: 53727

Re:

- Calibrating the envelope generators: The elby instructions feel convoluted to me and the 73-75 is a little vague. It helps to read up on how these work, they're kind of counter intuitive, so just having a better understanding of how it's supposed to function is a good thing. Turn the rise and fal...
by elmegil
Mon Mar 30, 2020 11:41 pm
Forum: Music Tech DIY
Topic: [Kits Available!] Eurorack Klee Panel and Daughterboard
Replies: 1585
Views: 122857

Re: [Kits Available!] Eurorack Klee Panel and Daughterboard

any ideas where I should start looking? I did have a bit of trouble with the 10v 78L10 Can you provide more detail about the the 78L10? Did you go through the bring up procedure in detail? If so where did things start to go south? Are you using the most recent version which requires no interconnect...
by elmegil
Thu Mar 19, 2020 1:52 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 123
Views: 10712

Re: The 2020 Show Us Your DIY Builds Thread!

No worries about module depth there! :-D
by elmegil
Tue Mar 17, 2020 4:44 pm
Forum: Music Tech DIY
Topic: PCBs as Front Panels ?
Replies: 174
Views: 13333

Re: PCBs as Front Panels ?

When you generate the gerbers, KiCad will clip any silk screen layers etc anyway. I have periodically had groundplane pours that exceeded the bounds of the edge cuts, never had any issues.
by elmegil
Tue Mar 17, 2020 3:48 pm
Forum: Music Tech DIY
Topic: PCBs as Front Panels ?
Replies: 174
Views: 13333

Re: PCBs as Front Panels ?

I suspect that depends on the guidelines from the particular fab.

yeah, I would expect edge cuts shapes to also not be plated. But I wouldn't use them for "holes" unless we're talking > 1/2"
by elmegil
Tue Mar 17, 2020 2:41 pm
Forum: Music Tech DIY
Topic: PCBs as Front Panels ?
Replies: 174
Views: 13333

Re: PCBs as Front Panels ?

whether holes are plated or not depends on which gerber they are in. The "npth" (not plated through) file has holes that are not going to be plated.
by elmegil
Tue Mar 17, 2020 10:00 am
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) OSC Sync PCB
Replies: 219
Views: 14248

Re: Two Thousand Six Hundred (TTSH) OSC Sync PCB

How many 2600's do you have, LED-man? :D
by elmegil
Sat Mar 14, 2020 3:43 am
Forum: Music Tech DIY
Topic: 73-75 Serge panels from Zthee
Replies: 436
Views: 53727

Re: 73-75 Serge panels from Zthee

Next question for this build has to do with jacks The bananas appear to follow the Elby color scheme (I have 8 colors, just missing Orange, which as a special, probably doesn't apply), but I have nothing that I've been able to find that maps the Elby scheme to the specific positions on these panels....
by elmegil
Fri Mar 13, 2020 5:53 pm
Forum: 5U Format Modules
Topic: Must Have euro Modules you would like to see in 5u ?
Replies: 69
Views: 4010

Re: Must Have euro Modules you would like to see in 5u ?

Ah, gotcha. So each slider is a harmonic rather than a step in a waveform. Interesting, certainly.

If it's originally Buchla I'd be surprised if *someone* hasn't cloned it to 5U.

Edit: So I guess I get to be surprised. Mark's notes are the only references to it I see....
by elmegil
Fri Mar 13, 2020 3:03 pm
Forum: 5U Format Modules
Topic: Must Have euro Modules you would like to see in 5u ?
Replies: 69
Views: 4010

Re: Must Have euro Modules you would like to see in 5u ?

Not familar with it offhand, but if I were to guess it looks an awful lot like an Ian Fritz Double Deka, which is (or was) available in 5U.
by elmegil
Fri Mar 13, 2020 2:36 pm
Forum: 5U Format Modules
Topic: Must Have euro Modules you would like to see in 5u ?
Replies: 69
Views: 4010

Re: Must Have euro Modules you would like to see in 5u ?

hamildad wrote:
Fri Mar 13, 2020 12:18 pm
I'll always look at euro >5U conversions and only see the waste of panel real estate and the wincy wee screens used.
I couldn't agree more :)
by elmegil
Fri Mar 13, 2020 9:12 am
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 123
Views: 10712

Re: The 2020 Show Us Your DIY Builds Thread!

It used to be that the upload process resized photos automatically if they were in-line. I wonder if that has been lost or deliberately turned off?
by elmegil
Fri Mar 13, 2020 9:09 am
Forum: 5U Format Modules
Topic: Must Have euro Modules you would like to see in 5u ?
Replies: 69
Views: 4010

Re: Re:

What knobs did you use? Beautiful build! Thank you :) Paul uses a mini (1/2"? or maybe 5/8") version of the same style knob as the bigger MOTM modules. In one instance he shipped the knobs on the module as I bought it from him (without jacks/jack board), and in the other instance I used knobs of th...
by elmegil
Wed Mar 11, 2020 4:16 pm
Forum: 5U Format Modules
Topic: Must Have euro Modules you would like to see in 5u ?
Replies: 69
Views: 4010

Re: Must Have euro Modules you would like to see in 5u ?

I'd like to see some manufacturers make 5U PCBs for themselves or DIYers, rather than rely on other people to repanel a euro PCB. Significant expense for very little return. The 5U market is tiny. Synth Tech Hyperion Effects unit has me shook, but I dont think it would work with a repanelling. espe...
by elmegil
Sun Mar 08, 2020 4:24 pm
Forum: Music Tech DIY
Topic: Benjolin PCB
Replies: 14
Views: 701

Re: Benjolin PCB

Fair enough. I think that had crossed my radar before and I understand that you had permission, it had slipped my mind when responding here though.

I had no intent to throw shade your way :)

When I was doing a run 3 years ago, he was still asking not to provide CAD files....
by elmegil
Sun Mar 08, 2020 3:15 pm
Forum: Music Tech DIY
Topic: Benjolin PCB
Replies: 14
Views: 701

Re: Benjolin PCB

in line with Rob's wishes of keeping this a DIY community project - is there a cad file that i can send to a pcb printing place - that uses standard throughhole components? Rob specifically asks any of us doing layouts NOT to share the CAD files because once that is done, no matter the intent to al...
by elmegil
Sun Mar 08, 2020 2:24 pm
Forum: Music Tech DIY
Topic: PCBs as Front Panels ?
Replies: 174
Views: 13333

Re: PCBs as Front Panels ?

i wish they would add hexagons or even let you input a tile-able pattern. What I've done is create a bitmap the size of the panel and import it the same way I would a silkscreen layer, except I assign it to a copper layer. I haven't done it with DipTrace, but it works well in KiCad. Main downside i...

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