Search found 666 matches
- Tue Dec 29, 2020 12:27 am
- Forum: Music Tech DIY
- Topic: A joystick schematic acceptance
- Replies: 10
- Views: 359
Re: A joystick schematic acceptance
If you want there to be a middle dead zone where the voltage doesn't change, a couple of back-to-back diodes in parallel before the op-amp input is a good idea.
- Sat Dec 19, 2020 3:16 pm
- Forum: Music Tech DIY
- Topic: Help with MIDI wiring/switching
- Replies: 6
- Views: 176
Re: Help with MIDI wiring/switching
Midi merger? Didn’t know that word but it makes sense. Thanks, learned something today :tu: MIDI merging seems easy, until you realise you have to arbitrate if you get conflicting MIDI clock pulses from two or more sources at once, or you have a synth that sends running status, in which case you ha...
- Tue Dec 08, 2020 3:47 pm
- Forum: Music Tech DIY
- Topic: PROGUE - Analog mono synth - AUDIO DEMO
- Replies: 86
- Views: 4804
Re: PROGUE - Analog mono synth - AUDIO DEMO
I am happy with SMD. Go with it.
- Sun Aug 16, 2020 4:13 pm
- Forum: Music Tech DIY
- Topic: Cheap pot caps for cheap pots
- Replies: 11
- Views: 525
Re: Cheap pot caps for cheap pots
How much do you people perspire? These are perhaps for ambient chill use only then. Seriously, they are going to be absolutely fine for me - I don't need vice grips to get them to turn. I'll ask my Chinese medicine practitioner and martial art teachers about the chrome and vanadium. This is an amaz...
- Thu Jul 30, 2020 12:03 am
- Forum: Music Tech DIY
- Topic: Cheap pot caps for cheap pots
- Replies: 11
- Views: 525
Re: Cheap pot caps for cheap pots
I bought the 6mm internal diameter caps. Good idea about the 3mm ones for tactile buttons, Sandrine.
- Wed Jul 29, 2020 1:33 pm
- Forum: Music Tech DIY
- Topic: Cheap pot caps for cheap pots
- Replies: 11
- Views: 525
Re: Cheap pot caps for cheap pots
How much do you people perspire? These are perhaps for ambient chill use only then. Seriously, they are going to be absolutely fine for me - I don't need vice grips to get them to turn. I'll ask my Chinese medicine practitioner and martial art teachers about the chrome and vanadium.
- Wed Jul 29, 2020 6:39 am
- Forum: Music Tech DIY
- Topic: Cheap pot caps for cheap pots
- Replies: 11
- Views: 525
Cheap pot caps for cheap pots
I don't know if any of you use this style of pot which has a plastic shaft and screwdriver slot. I was looking for something to make them look a little better and found these caps on Aliexpress in the Jewellery section. They are shiny stainless steel. While not very deep, they do cap the knobs off w...
- Tue Jul 14, 2020 2:29 am
- Forum: Music Tech DIY
- Topic: [Project] Turing Machine Mk2
- Replies: 554
- Views: 56308
Re: [Project] Turing Machine Mk2
What a real Turing machine looks like…
- Fri Jun 26, 2020 3:15 pm
- Forum: Music Tech DIY
- Topic: MIDI - CV options?
- Replies: 9
- Views: 524
Re: MIDI - CV options?
I have a pair of Eurorack Modular Solos from Kenton. Not cheap, but full of useful features you won't find anywhere else and professional studio quality. Recommended.
https://kentonuk.com/product/modular-solo/
https://kentonuk.com/product/modular-solo/
- Fri Jun 19, 2020 3:53 am
- Forum: Music Tech DIY
- Topic: What is wrong with my Baby8?
- Replies: 6
- Views: 366
Re: What is wrong with my Baby8?
Kristian has a youtube series on the Baby 8 and links to schematics. Perhaps these would help you? Baby 8 Sequencer on Youtube.
- Sun Jun 14, 2020 6:31 am
- Forum: Music Tech DIY
- Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
- Replies: 203
- Views: 9898
Re: OPERA ROTAS, a DIY mutant drum machine
Great... I didn´t know about the opera molas version. I thought opera rotas was the only know magic square in existence :D So this is for invoking femenine spirits? Juicy... There are a few more magic squares of this nature. Scope here for naming your future projects. https://i.imgur.com/Rwmnl4L.jpg
- Sat Jun 13, 2020 3:04 pm
- Forum: Music Tech DIY
- Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
- Replies: 203
- Views: 9898
Re: OPERA ROTAS, a DIY mutant drum machine
Or perhaps the other version:
SALOM
AREPO
LEMEL
OPERA
MOLAS
Coming under the rule of Venus, this is used to obtain the love of a maiden. What kind of QBListic magik is this infernal device of which you speak?
SALOM
AREPO
LEMEL
OPERA
MOLAS
Coming under the rule of Venus, this is used to obtain the love of a maiden. What kind of QBListic magik is this infernal device of which you speak?
- Sat Jun 13, 2020 3:01 pm
- Forum: Music Tech DIY
- Topic: OPERA ROTAS, a DIY mutant drum machine BUILD THREAD
- Replies: 203
- Views: 9898
Re: OPERA ROTAS, a DIY mutant drum machine
Isn't the full version:
SATOR
AREPO
TENET
OPERA
ROTAS
The Greater Seal of Solomon, under the influence of Saturn. Will it work if you only use part of the spell?
SATOR
AREPO
TENET
OPERA
ROTAS
The Greater Seal of Solomon, under the influence of Saturn. Will it work if you only use part of the spell?
- Tue May 12, 2020 11:32 am
- Forum: Music Tech DIY
- Topic: System700 clone: 14,4V
- Replies: 3
- Views: 292
Re: System700 clone: 14,4V
Hello, on the yusynth website I found several interesting System 700 schematics: http://yusynth.net/gear/R700_MC_en.html For example the VCA 704A/B required 14,4v for the LED control: http://yusynth.net/gear/ROLAND/R700-schematics/704-ABCD-VCA.pdf How can i generate the 14,4v? Or it works also with...
- Mon May 11, 2020 2:47 pm
- Forum: Music Tech DIY
- Topic: Std Res resistors
- Replies: 11
- Views: 511
- Tue May 05, 2020 7:39 am
- Forum: Music Tech DIY
- Topic: The horror of "PCB pattern is 1/4 normal size"
- Replies: 13
- Views: 904
Re: The horror of "PCB pattern is 1/4 normal size"
Graphic designers and artists used Grant Enlargers to scale up artwork. You can Google them. They weren't cameras, just a mechanical machine with a lens. You put your original on the bottom under the lens, focused it up onto a glass plate where it could be traced over by hand. Art schools had them, ...
- Tue May 05, 2020 7:29 am
- Forum: Music Tech DIY
- Topic: The horror of "PCB pattern is 1/4 normal size"
- Replies: 13
- Views: 904
Re: The horror of "PCB pattern is 1/4 normal size"
If your question is about how did we get hobby artwork to the right size in the first place, in the UK there were companies that specialised in providing the PCBs for published projects, so we simply bought them. For the ETI 4600 and 5600S synths Maplin sold all the PCBs. For the ETI 4600 full-sized...
- Tue May 05, 2020 7:19 am
- Forum: Music Tech DIY
- Topic: The horror of "PCB pattern is 1/4 normal size"
- Replies: 13
- Views: 904
Re: The horror of "PCB pattern is 1/4 normal size"
I use Photoshop. Nice information. But the question is what you did before modern software solutions existed? Well I once worked in printed circuit board factory. I'd prepare a film positive by placing sticky pads on acetate over a design drawn on paper with crepe tape to lay down the trackwork. Or...
- Mon May 04, 2020 11:55 am
- Forum: Music Tech DIY
- Topic: The horror of "PCB pattern is 1/4 normal size"
- Replies: 13
- Views: 904
Re: The horror of "PCB pattern is 1/4 normal size"
I use Photoshop. There are usually some components that are on a 0.1" grid. I take the scan into Photoshop and make the grid. 0.1" and show grid. I then go into Image>Image size and without 'Resample Image', adjust the ppi, pixels/inch, until the grid matches up with the 0.1" grid. I use Osmond PCB ...
- Sat May 02, 2020 10:58 am
- Forum: Music Tech DIY
- Topic: Sine wave circuit issues on CEM3340
- Replies: 17
- Views: 852
Re: Sine wave circuit issues on CEM3340
Glad you got fixed. I am sorry I was unable to help myself. I am not able to access my builds and documentation right now.
- Fri Apr 17, 2020 4:08 pm
- Forum: Music Tech DIY
- Topic: 1-a-day project
- Replies: 64
- Views: 5004
Re: 1-a-day project
Hi Julian, I know your quality is excellent and the accuracy is really spot-on, but your camera doesn't show your panels in their best light.
I have various examples of Julian's front panels and they look way better than the snapshots he shows.
I have various examples of Julian's front panels and they look way better than the snapshots he shows.
- Mon Apr 13, 2020 3:22 am
- Forum: Music Tech DIY
- Topic: 3D printed eurorack panels
- Replies: 20
- Views: 862
Re: 3D printed eurorack panels
Adding a gusset where the deep part of the panel joins the flat part will increase stiffness. Even a thin web -to preserve panel width in this area- will be better than the short overlap shown in the original. I did a number of experiments on my cheap 3D printer and got some surprisingly successful...
- Fri Apr 03, 2020 3:34 pm
- Forum: Music Tech DIY
- Topic: 1-a-day project
- Replies: 64
- Views: 5004
Re: 1-a-day project
Julian, you fill a niche that there is certainly a demand for. Your work is top quality and your attention to detail is really old skool. People, the bitter taste of a job gone wrong lasts a lot longer than the sweet taste of a cheap job. Yet Julian does seem to be able to give the likes of Schaeffe...
- Mon Mar 16, 2020 7:56 am
- Forum: Music Tech DIY
- Topic: ETI Maplin 4600 CV/Gate in?
- Replies: 6
- Views: 466
- Mon Mar 16, 2020 7:21 am
- Forum: Music Tech DIY
- Topic: ETI Maplin 4600 CV/Gate in?
- Replies: 6
- Views: 466
Re: ETI Maplin 4600 CV/Gate in?
I just had a reply from John at Kenton. I've replied sending him the transient schematic, so I expect he'll get back to me with a good solution. ---snip snippety snip from Kenton--- There is a setting on most of our converters that allows you to send a trigger of up 10V for Pro-Solo / 12.7V for Pro-...