Search found 307 matches

by Ayab
Tue Jan 05, 2021 9:55 am
Forum: Music Tech DIY
Topic: DIY drum suggestions
Replies: 9
Views: 414

Re: DIY drum suggestions

Check out Gene The Drum Machine

I don't know if there are any pcb's or kits left. Absolutely a unique machine for diyers.

viewtopic.php?t=179501
by Ayab
Thu Nov 19, 2020 6:52 pm
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

Oops missed your comment. Didn't notice that!
by Ayab
Thu Nov 19, 2020 6:09 pm
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

Hi AlanP

That is really helpful, thank you!
by Ayab
Thu Nov 19, 2020 12:40 pm
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

Hi Alan P Thanks for replying - I explained the cutouts to JLPCB and the result is fine. Think was glitch at their end and they were happy to sort it out. I do have some questions on the Buchla 258 VCO: 1. There are some resistor values that I am having difficulty working out. (R26, R25, R33, R34, R...
by Ayab
Tue Nov 17, 2020 2:53 pm
Forum: Music Tech DIY
Topic: Percussive noise module build
Replies: 2
Views: 242

Re: Percussive noise module build

Hi dylski Thank you for sharing your mod's to the percussive voice. I really enjoyed the video - I like your technique of sticking parts to the schematic with tape. I like to stick the parts onto the list of parts with masking tape! I am amazed that you managed to build the module without any circui...
by Ayab
Mon Nov 09, 2020 3:27 pm
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

I sent gerbers off to JLCPCB Maybe because my version of Eagle (7.5.5) is bit old but I had some issues with the panels. I ran the excellon drill thing to generate the gerber drill files. Anyway the problem is that the gerbers didn't seem to show actual cutouts (i.e. holes) for the panel controls. L...
by Ayab
Sun Oct 25, 2020 9:47 am
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

I want to mod the Korg 35/MS10 VCF to configure as an HPF. Is similar but not the same as the MS20 VCF (where an HPF input can be added by switching jack inserted between the 1nf cap [C6 on Rene Schmidt version] and ground). Assuming pin 7 of the K35 is equivalent to the MS20 Schematics OTA output m...
by Ayab
Thu Oct 22, 2020 4:46 am
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

For anyone interested this is the original touch controller article by Arpad Benares (see AlanP's panel) from Synapse Magazine.
by Ayab
Wed Oct 21, 2020 12:35 pm
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

Thank you for the reply Alan P

Erthenvar jacks is fine - I can get some.

I suspected that it was just the capacitative touch pads. That is so amazingly excellent.

:hail: :hail: :yay: :sb:
by Ayab
Wed Oct 21, 2020 8:00 am
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

Re: Touch -

A couple of questions:

- Can you please confirm the type of jack socket your footprint is for. If easier just post a picture.

- Does the panel need piezo discs soldered on?

Thank you again so much AlanP you rock!
by Ayab
Mon Oct 19, 2020 1:34 am
Forum: Music Tech DIY
Topic: Eagle Files - VCO, Filters, Touch, and SeqSw
Replies: 62
Views: 2463

Re: Eagle Files - VCO, Filters, Touch, and SeqSw

AlanP - Thank you your designs are beautifully laid out.

Haven't heard of the synapse touch controller but sounds interesting,
by Ayab
Thu Sep 17, 2020 4:53 am
Forum: Music Tech DIY
Topic: NLC Sloth Chaos DIY eurorack - 1st build help wanted
Replies: 4
Views: 192

Re: NLC Sloth Chaos DIY eurorack - 1st build help wanted

Hi 1. Have you decided what speed you want to build? Either Stasis etc.. 2. Do you have the parts? It is easiest to find a "Mouser Bom" = someone has probably made a list you can directly import into your onlinen shopping cart of the components supplier Mouser. This is easy but not the very cheapest...
by Ayab
Tue Sep 01, 2020 4:40 pm
Forum: Music Tech DIY
Topic: Clock multiplier suggestions
Replies: 12
Views: 365

Re: Clock multiplier suggestions

There is a simple circuit which you can build very easily with 7486 IC powered on +5v clock doubler.jpg I got my 7486 ic from cricklewood electronics for £3 The circuit is from Delton Horn's book on synth circuits. Good idea to put a schmidt trigger on the input to clean up the wave and if I am not ...
by Ayab
Mon Aug 31, 2020 3:58 pm
Forum: Music Tech DIY
Topic: The Hypster Hyperchaos generator with VC
Replies: 104
Views: 12683

Re: The Hypster Hyperchaos generator with VC

Hi dooj88 thanks for the comment I am still interested and think I will go for it! Ian :party: - I do have a Chaotica & not put off by idea of rapid changes. Would like flexibility of Option 2 - but without having the Hypster yet it is academic. I will contact Andrew and take the plunge! Looking at ...
by Ayab
Mon Aug 31, 2020 12:18 pm
Forum: Music Tech DIY
Topic: The Hypster Hyperchaos generator with VC
Replies: 104
Views: 12683

Re: The Hypster Hyperchaos generator with VC

Ian Fritz designs great synth circuits. I am going to order a pcb/panel from AndrewF and get onto the Hypster party, fashionably late. I would like to install the "Option 2" (as shown at the bottom of Part 2 of Ian Fritz's schematic) for smooth variation between "fat and thin" rather than switching ...
by Ayab
Sat Mar 28, 2020 7:08 am
Forum: Music Tech DIY
Topic: 1-a-day project
Replies: 64
Views: 5001

Re: 1-a-day project

I can second that Julian's panels are great quality - I have several eurorack panels he designed for Miscreant (whoop-john).
by Ayab
Thu Mar 19, 2020 11:43 am
Forum: Music Tech DIY
Topic: Beginners synth diy
Replies: 10
Views: 573

Re: Beginners synth diy

Yes I did buy one of those bare board super cheap component testers and it is really good - works with many transistors (confirms the pin out of the legs too), resistors, capacitors and diodes I've tried. Definitely a really useful bit of kit. Btw I am going to use your idea of using two wires for q...
by Ayab
Wed Mar 18, 2020 9:03 am
Forum: Music Tech DIY
Topic: Beginners synth diy
Replies: 10
Views: 573

Re: Beginners synth diy

Great to see that you have built your first module, the 4ms mult. Good choice and if you can do that you have many possibilities. (Obvious I know but you can check it by plugging patch cables into it and testing continuity by touching the corresponding tips with your dmm leads). Get a dmm if you don...
by Ayab
Sun Mar 08, 2020 1:10 pm
Forum: Music Tech DIY
Topic: eurorack level distortion circuit?
Replies: 6
Views: 916

Re: eurorack level distortion circuit?

This one from Hex Inverter was over on Electro-Music batteryACID_v1.0_schematic.png Battery Acid Stripbd Layout.jpg Battery Acid built.jpg There is also a distortion unit by Nikolas Ronnberg at: http://familjenronnberg.se/~niklas/diy/eurorack/dist/ I am about to build the LMNH "Safety Valve" Distort...
by Ayab
Sun Feb 23, 2020 2:12 pm
Forum: Music Tech DIY
Topic: just bought a sick Kork Polysix, progress
Replies: 15
Views: 940

Re: just bought a sick Kork Polysix

There are replacement pcb's available and also there is the kiwisix upgrade replacement. Kiwi recommend also changing the psu

https://www.ebay.co.uk/itm/303286749425

Haven't tried either of these but been looking at a Polysix. Look forward to hearing about how your project goes. Best of luck.
by Ayab
Sat Feb 08, 2020 11:10 am
Forum: Music Tech DIY
Topic: Internal wiring mod?
Replies: 5
Views: 419

Re: Internal wiring mod?

Hey Jorg, sounds like useful advice generally - What size resistor would be best to use? 1K is usual, no?
by Ayab
Sat Feb 08, 2020 11:07 am
Forum: Music Tech DIY
Topic: Ryk M185 Sequencer - per step repeat and gate mode
Replies: 313
Views: 24942

Re: Ryk M185 Sequencer - per step repeat and gate mode

Ryk says:

"Expecting the panels next week, so after a test-build
the kits should be ready to ship,"
by Ayab
Fri Feb 07, 2020 12:20 pm
Forum: Music Tech DIY
Topic: Internal wiring mod?
Replies: 5
Views: 419

Re: Internal wiring mod?

If you are planning to solder connections to the 138S sockets and then also plug input signals into those sockets, it is not advisable. Read the following thread about "stacking" inputs: https://www.muffwiggler.com/forum/viewtopic.php?p=1718024 From the thread:- Outputs are low impedance and must on...
by Ayab
Wed Feb 05, 2020 7:17 am
Forum: Music Tech DIY
Topic: 3 x 8 step sequencer with cv hold stripboard layout
Replies: 1
Views: 364

Re: 3 x 8 step sequencer with cv hold stripboard layout

Great video thank you for sharing and I especially liked the demo music - really beautiful! :yay: Any more info on how you did this patch/sequence would be appreciated. Fyi Minus did the 4017 strip board layout showing the wiring that you refer to (the green 8 bit style one): http://electro-music.co...
by Ayab
Sun Jan 05, 2020 5:11 pm
Forum: Music Tech DIY
Topic: Ryk M185 Sequencer - per step repeat and gate mode
Replies: 313
Views: 24942

Re: Ryk M185 Sequencer - per step repeat and gate mode

Quote from Ryk on Electro-music forum: "Here is a summary of the current features: - 2 channels of separate CV and gate outputs - 2.5V / 5V Quantised or 5V non-quantised for CH1 - 2.5V / 5V Quantised for CH2 - 8 stages, with 1-8 step repeats per stage - 8 gate modes per stage [ prev version had 4 ] ...

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