Search found 210 matches

by gwpt
Wed Apr 20, 2022 6:09 pm
Forum: Music Tech DIY
Topic: Steda Electronics SR-909 Drum Machine
Replies: 379
Views: 38078

Re: Steda Electronics SR-909 Drum Machine

thanks Huerejong! You're a life saver!! :)
by gwpt
Tue Apr 19, 2022 9:28 pm
Forum: Music Tech DIY
Topic: Steda Electronics SR-909 Drum Machine
Replies: 379
Views: 38078

Re: Steda Electronics SR-909 Drum Machine

Can anyone help with the following questions? 1. Do I need to fit the additional small noise board? It seems to be the same as a section on the main PCB and there aren't enough parts to populate both noiseSmall.jpg 2. How do I wire up the PSU board and transformer? I think I've worked out the transf...
by gwpt
Mon Feb 21, 2022 8:05 pm
Forum: Music Tech DIY
Topic: Dunno -- Eurorack B266 Source of Uncertainty clone
Replies: 4
Views: 1179

Re: Dunno -- Eurorack B266 Source of Uncertainty clone

anyone know what to value R132 should be?
The convention in the doc is <hard to find part no>**<easy to find part no> and the values are close apart from R132.

68k1**46k4
by gwpt
Sat Nov 27, 2021 8:48 pm
Forum: Music Tech DIY
Topic: TWO59 SHAPER (Building Thread) by FEEDBACK [PCB UPDATE]
Replies: 155
Views: 25045

Re: TWO59 SHAPER (Building Thread) by FEEDBACK [PCB UPDATE]

Hi, I just finished building my Shaper. The LEDs on it are painfully bright and much much brighter than on the two VCOs, so I was hoping to change the resistors to make them dimmer. I've gone through the schematic and come up with this: LED1 Sym LED R24 470R Seems ok to change LED2 Order LED No Resi...
by gwpt
Tue Sep 21, 2021 9:48 pm
Forum: Music Tech DIY
Topic: 18-channel DIY Stereo Analog Vocoder
Replies: 298
Views: 49542

Re: 18-channel DIY Stereo Analog Vocoder

updated pics above, hopefully you can see them this time :)

I made all the cables in one sitting just to get them out of the way before I built anything. It was nice to then just be able to plug them in as needed
by gwpt
Sun Sep 19, 2021 12:04 am
Forum: Music Tech DIY
Topic: 18-channel DIY Stereo Analog Vocoder
Replies: 298
Views: 49542

Re: 18-channel DIY Stereo Analog Vocoder

Here are some shots of my build https://i.ibb.co/R2zpZVt/DGyYhxig.jpg https://i.ibb.co/rGyRjDn/d9-hbcow.jpg And a couple of test recordings (sorry they aren't the best as I did them as a test whilst building, but it gives you an idea of some the features :) ) [media]https://www.dropbox.com/s/jw6uypx...
by gwpt
Mon Aug 09, 2021 7:23 pm
Forum: 1U & 3U Eurorack Modules
Topic: Strange behaviour (PSU?) with certain Analog Modules
Replies: 0
Views: 126

Strange behaviour (PSU?) with certain Analog Modules

I have a few analog modules which behave strangly in one of my cases: * The Living Memory VCO will randomly change pitch by about a semitone every 10 seconds or so * The MFOS 16 step sequencer's random function will spend 90% of it's the time at step 1 or 16 (looking with a scope, the noise generato...
by gwpt
Sat Jul 24, 2021 8:05 pm
Forum: Music Tech DIY
Topic: 7Dials CV Express DIY Expression Pedal Interface
Replies: 84
Views: 12668

Re: 7Dials CV Express DIY Expression Pedal Interface

Thanks for the reply!

"If so, as stated in the user guide, you should be calibrating to 9.1V"
Ooops, yes, I was, and I didn't see that in the guide. That'll be the issue
Cheers
by gwpt
Thu Jul 22, 2021 8:18 pm
Forum: Music Tech DIY
Topic: 7Dials CV Express DIY Expression Pedal Interface
Replies: 84
Views: 12668

Re: 7Dials CV Express DIY Expression Pedal Interface

Hi, I just built mine.
When calibrating (with a Roland EV-5). The Vref only went up to 9.73V, which I assume I close enough :)
Is this normal, or could I have stuffed something with the build?
Thanks
by gwpt
Thu May 27, 2021 11:30 pm
Forum: 1U & 3U Eurorack Modules
Topic: Euro dual Teezer?
Replies: 90
Views: 11352

Re: Euro dual Teezer?

Hi everyone, I'm just finishing off my build of this and was wondering with the 2 V/Oct inputs, has anyone normalized them together? It is a good idea or a bad idea? If good, what would be the best way to do it? (just take the v/oct signal from one of the unit's jacks and put it on the switched pin ...
by gwpt
Fri May 29, 2020 6:12 am
Forum: Music Tech DIY
Topic: Anyone have the DSP Chips datasheets? CZ1, FM1, K5, K8 etc.
Replies: 10
Views: 1347

Re: Anyone have the DSP Chips datasheets? CZ1, FM1, K5, K8 etc.

Thanks for the feedback eveyrone. I've managed to find source code from the links people have provided for some of his other chips. Does anyone know if ther source is available for the ones I listed above? (I could only find code for the o2 minipops and CZ1 out of that lot) I'm especially keen to fi...
by gwpt
Thu May 28, 2020 4:55 am
Forum: Music Tech DIY
Topic: Anyone have the DSP Chips datasheets? CZ1, FM1, K5, K8 etc.
Replies: 10
Views: 1347

Anyone have the DSP Chips datasheets? CZ1, FM1, K5, K8 etc.

Hi,
I have a bunch of the old DSP Chips chips which I wanted to finally get around to using and just realised his site seems to have dissapeared.. :(
Does anyone have documentation?

I would need it for the following:
O2
CZ1
K5
KL5
K8
ENV6
FM1

Thanks :)
by gwpt
Thu Apr 16, 2020 3:54 pm
Forum: Music Tech DIY
Topic: 18-channel DIY Stereo Analog Vocoder
Replies: 298
Views: 49542

Re: 18-channel DIY Stereo Analog Vocoder

HI Ando, I just worked out who you are! We've spoken several times on the DD build thread. It's sometimes tricky mapping FB names to Muff ones (your's is pretty easy though! :) I didn't go with the recessed nuts and thinks it's fine. Maybe they would be a little more stylish but I don't really notic...
by gwpt
Thu Apr 16, 2020 4:11 am
Forum: Music Tech DIY
Topic: 18-channel DIY Stereo Analog Vocoder
Replies: 298
Views: 49542

Re: 18-channel DIY Stereo Analog Vocoder

Hey Pando, Yes, I've finished mine. I've been meaning to post some updates for a while but the world craziness distracted me :) Here it is, I went for the black look and graduated colours for the knobs. https://live.staticflickr.com/65535/49779521298_28e869c98d_o.jpg and here's a peek on the inside:...
by gwpt
Tue Jan 28, 2020 8:01 am
Forum: Music Tech DIY
Topic: [ORDER] Euclidean Circles - LEDs with rhythm
Replies: 881
Views: 95703

Re: [ORDER] Euclidean Circles - LEDs with rhythm

I just did it. i.e. heat gun and paste and it came out MUCH better than soldering by hand.
No fogging of the lens. looks great.
Thanks for a great module
by gwpt
Tue Jan 28, 2020 6:14 am
Forum: Music Tech DIY
Topic: [ORDER] Euclidean Circles - LEDs with rhythm
Replies: 881
Views: 95703

Re: [ORDER] Euclidean Circles - LEDs with rhythm

I am about to finish my second one.
Can i use a heat gun and solder paste on the leds in the ring? Or will that melt them?
Anyone tried?
by gwpt
Tue Jan 28, 2020 5:52 am
Forum: Music Tech DIY
Topic: [ORDER] Euclidean Circles - LEDs with rhythm
Replies: 881
Views: 95703

Re: [ORDER] Euclidean Circles - LEDs with rhythm

mate, you're a genius, pin 5 is was! :) thanks a lot
by gwpt
Tue Jan 28, 2020 5:28 am
Forum: Music Tech DIY
Topic: [ORDER] Euclidean Circles - LEDs with rhythm
Replies: 881
Views: 95703

Re: [ORDER] Euclidean Circles - LEDs with rhythm

I just replaced the top chip. no changes.
Are the schematics available?
by gwpt
Tue Jan 28, 2020 5:10 am
Forum: Music Tech DIY
Topic: [ORDER] Euclidean Circles - LEDs with rhythm
Replies: 881
Views: 95703

Re: [ORDER] Euclidean Circles - LEDs with rhythm

HI, Just finished building by 1st Euclidean 2 and have a couple of issues: PCB version = 2.0.5d * none of the leds are lighting up at all in the rings.. * And the top encoder light is not lighting up (the bottom two are, and seem functional) I've visually inspected everything and can't see any error...
by gwpt
Mon Jan 27, 2020 2:57 am
Forum: 1U & 3U Eurorack Modules
Topic: MakeNoise Morphagene
Replies: 1993
Views: 286494

Re: MakeNoise Morphagene

ignore - dumbpost ;)
by gwpt
Tue Dec 31, 2019 2:33 am
Forum: Music Tech DIY
Topic: Erica Synths SWAMP - the Wogglebug-inspired DIY module
Replies: 71
Views: 13904

Re: Erica Synths SWAMP - the Wogglebug-inspired DIY module

Hi,
Do all the DIY swamps suffer the transistor problem discribed on the previos page?
I'm juyst building one (just got it from thonk) and wondering whether I need to do the hack.
by gwpt
Mon Dec 23, 2019 9:12 pm
Forum: Antumbra
Topic: BANK
Replies: 30
Views: 8296

Re: BANK

Hi, I read that someone did a mode to increase the gain on the low-gain input by changing a resistor. Any one know which resistor and what would be a suitable value? This was the quote I read: " changed a resistor value to add some gain to the low gain input. By default it was to low to my tast...
by gwpt
Tue Nov 19, 2019 4:37 am
Forum: Music Tech DIY
Topic: some diy euromodules
Replies: 8
Views: 2195

Hi there, I was wondering if anyone had build the SSM2045 based filter mentioned above? http://www.cim.mcgill.ca/~clark/diy/jjclark_2045_filter.html I tried to contact JJClark but sadly had no luck... I realise this is a really old post! I had 3 question a was hoping someone might know the answers: ...
by gwpt
Sat Aug 17, 2019 9:15 pm
Forum: 1U & 3U Eurorack Modules
Topic: ACL Sinfonion
Replies: 1336
Views: 155852

Just got mine and loving it so far. lots of lots of fun.

One thing I can't seem to get it to do (Maybe a feature request) is to assign Bypass to one of the Inputs.

I'd like to be able to turn the quantiser on and off with a footpedal
by gwpt
Sat Apr 27, 2019 3:56 am
Forum: 1U & 3U Eurorack Modules
Topic: Our answer to modular polyphony: Supercritical Synthesizers
Replies: 208
Views: 43438

Sounds lovely in the demo. "Supercritical"? "Demon Core"? I guess one could say the modular industry is.... ..... at a "Crossroads". Very tempting oscillator...technically. It's really a pity that it has a pentagram on its faceplate and a "demon core" because...

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