Search found 5282 matches

by EATyourGUITAR
Sun Oct 04, 2020 11:29 pm
Forum: Music Tech DIY
Topic: Octave Cat Power Supply Repair
Replies: 3
Views: 104

Re: Octave Cat Power Supply Repair

I agree with KSS. when a copper clad FR4 blank board is being made they use epoxy to glue copper sheet to fiberglass board before it is etched. if you can replicate that factory process you will in theory have a repair that makes it like it was never broken. the hard part is to get the epoxy only on...
by EATyourGUITAR
Sun Oct 04, 2020 11:19 pm
Forum: Music Tech DIY
Topic: question about using a hot air station
Replies: 3
Views: 165

Re: question about using a hot air station

thermal shock can crack the silicon or the package. many IC's are plastic packages. some are ceramic. the ceramic has lower thermal resistance so it gets hot faster but it also has less of a problem with different materials expanding at different rates. silicon is not melting, it is cracking like gl...
by EATyourGUITAR
Sun Oct 04, 2020 11:12 pm
Forum: Music Tech DIY
Topic: I got a "noisebox built for moby" off craigslist and opened it up.
Replies: 18
Views: 796

Re: I got a "noisebox built for moby" off craigslist and opened it up.

that sprague cap is high end. those metal cans are high end. this could be a devi ever circuit or a ciat lonbarde circuit. it could be anything really but I don't see how someone could make something that has not already been done by one of these two people. devi takes any two transistor fuzz pedal ...
by EATyourGUITAR
Sun Oct 04, 2020 10:53 pm
Forum: Music Tech DIY
Topic: Noise Transistor “Selection”
Replies: 16
Views: 399

Re: Noise Transistor “Selection”

https://www.noisecom.com/products/components/nc100-200-300-400-series-chips-and-diodes not sure what the deal is with these. last time I checked, they would not sell to me. it is actually funny though because any bad actors will buy the fft equipment to develop the process in house using big batches...
by EATyourGUITAR
Sat Oct 03, 2020 10:16 am
Forum: Eurorack Modules
Topic: Update from Mutable Instruments on a DivKid youtube comment? 3 more releases?
Replies: 131
Views: 13696

Re: Update from Mutable Instruments on a DivKid youtube comment? 3 more releases?

Yeah your comment doesn't add up. Right now on Modular Grid, MI has 3 of the top 5 spots under their most popular modules list. I can't think of many other companies that have generated as much popularity and admiration in the Euro world as MI has. Its been a very creative and imaginative company s...
by EATyourGUITAR
Fri Oct 02, 2020 1:41 pm
Forum: Music Software
Topic: Looking for a clean sample with only piano or guitar in .RAW format
Replies: 2
Views: 131

Re: Looking for a clean sample with only piano or guitar in .RAW format

Try freesound.org then use software to convert between file formats. Try to get a sample that has the same sample rate as your target. If you convert 48KHz to 44 you will get unwanted aliasing in the result.
by EATyourGUITAR
Thu Oct 01, 2020 6:54 pm
Forum: Music Tech DIY
Topic: Thinking of going back to school for electronics - worth it?
Replies: 35
Views: 817

Re: Thinking of going back to school for electronics - worth it?

Thanks for this. Do you happen to know if the previous editions of the Kramer book are suitable? They are waaaaaay cheaper than the newest edition. Also, yes. It makes me happy to hear how much joy these books have given you. And thanks for a few perspectives on how to *treat* the math learning... ...
by EATyourGUITAR
Thu Oct 01, 2020 3:09 pm
Forum: Music Tech DIY
Topic: Thinking of going back to school for electronics - worth it?
Replies: 35
Views: 817

Re: Thinking of going back to school for electronics - worth it?

@ Eatyourguitar - my current level of engineering is that I took calculus in high school, basically no engineering or science in college, and have forgotten all the calculus from high school. lol. if you are like me, you maybe forgot calc and algebra and trig. I had to suffer through calc 1 in coll...
by EATyourGUITAR
Thu Oct 01, 2020 2:37 pm
Forum: Music Tech DIY
Topic: Thinking of going back to school for electronics - worth it?
Replies: 35
Views: 817

Re: Thinking of going back to school for electronics - worth it?

I can give you a list of trans women in guitar pedals and synthesizers. I think there are many prominent successful businesses started by trans women. I am no expert but I am estimating that the percentage of trans women involved with synths and electronics is actually higher than it is in society. ...
by EATyourGUITAR
Thu Oct 01, 2020 11:01 am
Forum: Music Tech DIY
Topic: Dreadbox Erebus DIY kit
Replies: 232
Views: 25060

Re: Dreadbox Erebus DIY kit

Too bad they don't publish the mcu firmware for future troubleshooting... from what I read on muffs, %50 or %90 of people can't figure out how to compile and flash firmware even if they have the source code given to them. having a binary blob does not help you unless you are an expert with decompil...
by EATyourGUITAR
Thu Oct 01, 2020 8:03 am
Forum: Music Tech DIY
Topic: Locking male and female 2.54mm headers?
Replies: 6
Views: 189

Re: Locking male and female 2.54mm headers?

well if you want to look at buchla stuff it would be edac or hirose connectors
by EATyourGUITAR
Thu Oct 01, 2020 7:51 am
Forum: Eurorack Modules
Topic: Eowave Titan soft sync
Replies: 13
Views: 220

Re: Eowave Titan soft sync

vcoscope1.jpg if we find the line that best fits the data we see that the green line fits better than the red line. the green line is an exponential function moving backwards. this is a standard shape you see in laplace transforms that are pretty much a short way of writing down the result of all t...
by EATyourGUITAR
Wed Sep 30, 2020 5:01 pm
Forum: Music Tech DIY
Topic: Locking male and female 2.54mm headers?
Replies: 6
Views: 189

Re: Locking male and female 2.54mm headers?

use the same 2.54mm headers but put right angle standoffs on the side. the connectors that you think you want are like $35 each and you need two of them per card. the locking plastic tabs are typically for board to wire connectors. board to board connectors are friction or screw down because you can...
by EATyourGUITAR
Wed Sep 30, 2020 4:40 pm
Forum: Music Tech DIY
Topic: Tool where you place a flat surface against PCB while soldering...
Replies: 10
Views: 312

Re: Tool where you place a flat surface against PCB while soldering...

I stick a card over the resistors then I flip it over and slide the card out.
by EATyourGUITAR
Wed Sep 30, 2020 10:45 am
Forum: Eurorack Modules
Topic: Separating sources by band
Replies: 33
Views: 806

Re: Separating sources by band

Sorry my mistake!
by EATyourGUITAR
Wed Sep 30, 2020 9:21 am
Forum: Music Tech DIY
Topic: Kawai K3 custom waveforms
Replies: 4
Views: 147

Re: Kawai K3 custom waveforms

There are two major areas to study. One is continuous time domain signals and the other discrete time domain signals. That course is likely %100 continuous time domain signals for mechanical engineers studying vibration coupling and dampening used in bridges or car suspensions and finite material an...
by EATyourGUITAR
Wed Sep 30, 2020 8:55 am
Forum: Music Tech DIY
Topic: How can I trick my soft sync VCO into hard sync?
Replies: 4
Views: 161

Re: How can I trick my soft sync VCO into hard sync?

Yes definitely something that involves soldering. If your VCO did not come with hard sync then that is pretty much the way it is.
by EATyourGUITAR
Wed Sep 30, 2020 8:52 am
Forum: Music Tech DIY
Topic: Making knobs from new designs
Replies: 2
Views: 300

Making knobs from new designs

If you want to try inventing a new knob and you provide me with an STL, I can 3D print the masters and cast some knobs in resin in a wide variety of colors or swirls. Any shaft type is possible but this is all experimental. I can do one knob for free just to try it but after that we would need to ta...
by EATyourGUITAR
Wed Sep 30, 2020 3:13 am
Forum: Eurorack Modules
Topic: Separating sources by band
Replies: 33
Views: 806

Re: Separating sources by band

Daisuk wrote:
Fri Sep 25, 2020 6:18 am
Check out the Worng Soundstage. :)
this is not a filter. it is rectifiers and mixers. OP is looking for crossovers, vocoders, band pass filters or EQ,
by EATyourGUITAR
Tue Sep 29, 2020 4:28 pm
Forum: Modular Synth General Discussion
Topic: Modular Memes
Replies: 1696
Views: 342265

Re: Modular Memes

Image
by EATyourGUITAR
Tue Sep 29, 2020 6:40 am
Forum: Music Tech DIY
Topic: Kawai K3 custom waveforms
Replies: 4
Views: 147

Re: Kawai K3 custom waveforms

it requires reverse engineering and coding software that runs on the computer to do the file format conversion and data configuration. see if this scares you https://stackoverflow.com/questions/17598572/read-and-write-to-binary-files-in-c I read everything on all the links you posted. they reverse e...
by EATyourGUITAR
Tue Sep 29, 2020 6:05 am
Forum: Music Tech DIY
Topic: How can I trick my soft sync VCO into hard sync?
Replies: 4
Views: 161

Re: How can I trick my soft sync VCO into hard sync?

this can be very complicated with a through zero vco or a quadrature VCO but super easy with a basic saw core VCO. all VCO have capacitors because all VCO have integrators to perform time functions that do integration in real time. hard sync is like shorting a battery to drain the battery. think of ...
by EATyourGUITAR
Mon Sep 28, 2020 7:30 pm
Forum: Music Tech DIY
Topic: Midi to dinsync Arduino, is this safe for vintage gear?
Replies: 9
Views: 654

Re: Midi to dinsync Arduino, is this safe for vintage gear?

You can buy cheap scopes that measure down to 1mV but only when the range is set to +/-250mV. The siglent scope for $400 can measure 500uV increments. After that you are spending $1250 for the pico scope which is not the best all around scope even though it is the cheapest 16bit ADC compared to a $4...
by EATyourGUITAR
Mon Sep 28, 2020 3:51 pm
Forum: Music Tech DIY
Topic: xicon minimum order on Mouser
Replies: 23
Views: 515

Re: xicon minimum order on Mouser

I don't think it is robots actually. there is a video of the order pickers at mouser. the conveyor belt might have some barcode activated routing but that is probably all there is. people do grab stuff off the shelf and put it in bags. they print the labels and put them on the bags. machine assisted...

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