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Help? How to isolate 555 oscillators

An old familiar subject to me.If this is an organ board with 555 timers, they are likely bipolar and those are nasty. If that is the case, the easiest approach is to simply replace the 555 chips with...

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MS-20 VCF Stripboard Layout

I experimented a bit today. came out at the end so that I take the two darlington buffer to buffers cv 1 and 2. I also exchanged the 1nf for 0.68nf and 0.22nf in series and took the lf347 instead of...

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Fritzing

noodle, I looked at the Fritzing web page this morning for a little while and I must say it's got a big thumb's up from me! I've been missing out on some very powerful stuff here. It's breadboard...

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Yusynth, Thomas Henry and other stripboard modules

hey there....this is my take of the Yusynth Pulse Delay module laid out on stripboard. Enjoy.

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ARP Axxe VCO

Hi, allI have been using this forum for learning more about modular synthesis and i have built a few bits that i will show in another tread but now i have stumbled upon this axxe clone. I etched a...

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MFOS VCO, VCA and some others

Ok, Gerbers should be uploaded for everything that's ready at the github link. There's still a few minor issues here and there, but I'm working through them. Check the readme for the most up to date info.

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808 Bass Drum Clone Eagle PCB & CNC Gcode

HiThanks for helping. I saw different kind of values on Mouser but I’ll just order something for this. RegardsJake

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CEM3340 VCO LMNC

Futher Readinghttps://electricdruid.net/cem3340-vco-voltage-controlled-oscillator-designs/Source of 3340shttps://electricdruid.net/product/as3340-vco/ I have been eyeing druid's SH101 design for a bit...

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Roland 130 VCA PCB Design

MPF102 seems to work fine, but you have to bend the legs for this layout. Any chance I could get a copy of the Eagle files? I would like to bring the connectors over to an edge to minimize...

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+/- 10V reference for balanced modulator

Hi there:Finished a AD533 based Balanced modulator recently based on an old Electronotes design.It needed a temp. stable +/- 10V reference for X Y and DC trim. I came up with this, based on Elby...

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ARP Odyssey MKII/III VCO - Eurorack Format

Hi Cathmart,I think you're looking for this repo: https://github.com/PhilicityK/ARP_Odyssey_VCO Hi...any help with the parts layout for the Current ARP Odyessy VCO sold on Pusherman.....it is...

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Ian Fritz Chaos Gen Stripboard Layout - Standalone Rungler

w/r/t the Rungler, here is how the data input works on Andrew F's 8-bit cipher. (Think I'm going to just build that, since it does everything I would want from a standalone Rungler!) But looks like a...

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Devil's Triangle Drone Sequencer

I've built this layout and can confirm it works perfectly. I'll try to upload a sample once I have more time. As I mentioned, I'm a newbie to DIY synth building but I think this may be my favourite...

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MS-20 LPF LMNC design

I've designed a gerber for this design incase anyone wants to print their own PCB. (2 layers)https://github.com/Whalemoth/MS20PCB

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MS-20 LPF clone problem

Here is Rene's schematic: https://www.schmitzbits.de/ms20.html and here is LM13700 OTA version (which I built): https://www.lookmumnocomputer.com/projects/#/simple-filter . But yesterday I solved...

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TR-808 Snare Stripboard

Yup I get it. It calls for a 100k pot for level, and I only had a 50k pot on hand, is why I was asking about 50k versus 100k.

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4x4 VCA Matrix on 5x stripboard

Feeling adventurous? Prove your stripboard manhood by building a 4x4 VCA matrix based on Nonlinear Circuits' Cluster module. 5 board stack! :shock: Let me know if you find any errors in this layout.

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808 Handclap (almost there)

Sorry for the noob question, but I've never had a PCB fabbed before. How exactly does one go about getting a PCB made from files such as these? Do I need eagle in order to convert them to gerber files?

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MFOS - Dual AR

D6 is not correct, you solder it backwards. Oucht! Yeah isak My big mistake! :roll: I put the diode correctly and works smoothly, not the faster envelope on heart but cool! Now I need to get the log...

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Yusynth on Stripboard

@artilect99 I think the clock divider would work on 12V without modifications . Running Yusynth on 12V is discussed in this thread: http://electro-music.com/forum/viewtopic.php?t=39693 However, the...

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