Search found 166 matches

by FactoryDefault
Tue Oct 20, 2020 10:47 pm
Forum: Music Tech DIY
Topic: Jürgen Haible Krautrock phaser BUILD THREAD
Replies: 293
Views: 33925

Re: Jürgen Haible Krautrock phaser BUILD THREAD

Manymachines, if your relay part number matches the bom then you're probably good. Is it the finder 30.22.9 12V ? That draws 40mA or less so it's probably not what's blowing your fuse, unless it's faulty. The white relay in JHs pictures is the other relay he mentions in the bom - a Meder TC12 K002. ...
by FactoryDefault
Tue Oct 20, 2020 4:12 pm
Forum: Music Tech DIY
Topic: Jürgen Haible Krautrock phaser BUILD THREAD
Replies: 293
Views: 33925

Re: Jürgen Haible Krautrock phaser BUILD THREAD

You’re correct - cd4007 pins 8 & 13 are connected so that’s normal. Do you have a multimeter? Maybe check the current across the fuse in a working configuration to see how close you are to 500mA. Also which relay did you use? The one in the bom only draws 40mA max across the coil when actuated. If y...
by FactoryDefault
Sat Sep 12, 2020 10:18 pm
Forum: Music Tech DIY
Topic: KORG SR 120 MINIPOPS CLOCK IN?
Replies: 4
Views: 204

Re: KORG SR 120 MINIPOPS CLOCK IN?

Here we go. I added a couple of npn transistors. They emulate the part of the circuit that I'm switching in and out. I tried 2SC945 and 2N3904 and they both worked. It's super easy to do on strip board. minipops pcb sync points zoomed in.png minipops pcb sync points zoomed out.png Minipops add-on bo...
by FactoryDefault
Mon Aug 24, 2020 1:52 pm
Forum: Music Tech DIY
Topic: KORG SR 120 MINIPOPS CLOCK IN?
Replies: 4
Views: 204

Re: KORG SR 120 MINIPOPS CLOCK IN?

I’m pretty determined to solve this problem but unfortunately it’s not as simple as the Tubbutec diagram suggests. I did at least find a way to try that idea without cutting any traces. There is a via between the main oscillator section and the first divider IC. It’s an older style of via that looks...
by FactoryDefault
Mon Aug 17, 2020 11:19 pm
Forum: Tubbutec
Topic: Issue with Unipulse Mk3 and Korg KR-55
Replies: 2
Views: 122

Re: Issue with Unipulse Mk3 and Korg KR-55

If it’s anything like a minipops, there is a mute circuit that engages when stopped. Hit play with no rhythm selected to override this.
by FactoryDefault
Fri Jul 31, 2020 2:04 pm
Forum: Music Tech DIY
Topic: KORG SR 120 MINIPOPS CLOCK IN?
Replies: 4
Views: 204

Re: KORG SR 120 MINIPOPS CLOCK IN?

I had plans to perform this mod at some point but backed off once I realized that it involved cutting traces. If I ever regain motivation, I will post results here. That tubutec page is definitely a good starting point. You want to feed a clock into the junction point that is normally fed into the d...
by FactoryDefault
Tue Jul 07, 2020 10:00 am
Forum: Music Tech DIY
Topic: My eurorack MFOS 16 step sequencer
Replies: 10
Views: 541

Re: My eurorack MFOS 16 step sequencer

Awesome job. How did you remove the rest of the material between the two end holes in the slider slots? CNC or file? End result looks very tidy.
by FactoryDefault
Sat Jun 20, 2020 6:01 pm
Forum: Music Tech DIY
Topic: Peterson Preamp stereo tremolo clone pedal (Rhodes mk1)
Replies: 1
Views: 611

Re: Peterson Preamp stereo tremolo clone pedal (Rhodes mk1)

This is just what I am looking for!
Just bought a Rhodes and so far I’m using an iPad + apogee jam + GarageBand as a pre-amp. It kinda works but it feels wrong!
Email on its way.
by FactoryDefault
Thu Jun 04, 2020 11:52 am
Forum: Music Tech DIY
Topic: [AVAILABLE] TTSH V4 Build Thread
Replies: 1012
Views: 66716

Re: [AVAILABLE] TTSH V4 Build Thread

All, Need a little help. I've got the power supply built but I'm only getting +15 and not the -15. When I check at the dc to dc converters I do get readings at both. Not sure what I should check. thanks, brad Can you post a HQ picture of the board? (Front and back so we can components and solder jo...
by FactoryDefault
Wed May 13, 2020 9:27 pm
Forum: Music Tech DIY
Topic: TTSH Ver.3 (rev.8) General build thread
Replies: 2031
Views: 118239

Re: TTSH Ver.3 (rev.8) General build thread

Here's a potential improvement for the speaker-wire-to-board connectivity. Maybe someone already suggested this but I haven't seen it. I wanted to figure this out after a speaker wire pulled a pad from the board during the shapers mod install. These terminal blocks works great: https://www.digikey.c...
by FactoryDefault
Fri Apr 17, 2020 3:42 pm
Forum: Music Tech DIY
Topic: [AVAILABLE] TTSH V4 Build Thread
Replies: 1012
Views: 66716

Re: [AVAILABLE] TTSH V4 Build Thread

Nice work!
by FactoryDefault
Tue Apr 14, 2020 6:55 pm
Forum: Music Tech DIY
Topic: [AVAILABLE] TTSH V4 Build Thread
Replies: 1012
Views: 66716

Re: [AVAILABLE] TTSH V4 Build Thread

It’s hard to tell from your photo - is that solid wire? The idea is that you use stranded wire of the correct gauge and it strips the insulation for you as it’s pushed into the slot. I usually use a small screwdriver or the end of a pair of needle nose pliers for this. Never tried it with solid wire...
by FactoryDefault
Sat Feb 15, 2020 8:20 pm
Forum: Music Tech DIY
Topic: pitchbend / mod wheel parts needed
Replies: 2
Views: 263

Re: pitchbend / mod wheel parts needed

Check the pro2021 thread. Devinw designed the pitch and mod wheels for that kit. They’re pretty sweet. Not sure if they’re available separately though.
by FactoryDefault
Fri Feb 14, 2020 8:45 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

Re: ARP 1601 clone Build Thread

I twisted the 4 outer pins on my switches by 90 degrees. It worked great. I'm having a hard time picturing what you mean. Photos? Filing is working, but is time consuming. Sorry the switches are already soldered and the lid is already on my 1601 but I’ll try to describe my process: Grip each pin wi...
by FactoryDefault
Tue Feb 11, 2020 11:07 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

Re: ARP 1601 clone Build Thread

elmegil wrote:
Wed Feb 05, 2020 1:33 am
Kipling wrote:
Sun Feb 02, 2020 9:15 am
I would be more inclined to carefully file down the outer pins until it fits snugly in the board, rather than bending them.
I twisted the 4 outer pins on my switches by 90 degrees. It worked great.
by FactoryDefault
Sun Jan 26, 2020 11:02 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

Re: ARP 1601 clone Build Thread

In the build I'm doing I just put the one in the ground, with the tought that my meter can hit those other holes just fine, but it's nice to clip the ground. But yeah, if you were to cover all the possible test points + ground..... Yeah I just made some out of component legs but it looks sexier wit...
by FactoryDefault
Sun Jan 26, 2020 3:17 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

Re: ARP 1601 clone Build Thread

sequencer bom update needed on line 46:

Keystone Electronics 5123 PCB COMPACT TEST POINT GRAY .063"

there should be quantity 22 of these. currently that line says quantity 1
by FactoryDefault
Thu Jan 23, 2020 8:25 pm
Forum: Music Tech DIY
Topic: Mutron Biphase Clone - Fabric Astronaut
Replies: 92
Views: 10875

Re:

We have clone boards for the BiPhase over at Dead End FX as well. I just finished building a dead end FX lola. I’ve never played with the real thing in person but I’ve listened to a ton of old Lee Perry and this sounds pretty incredible. Had a ton of fun last night sending TTSH oscillators into the...
by FactoryDefault
Fri Dec 27, 2019 2:20 pm
Forum: Music Tech DIY
Topic: [Build Thread] Jasper, an EDP Wasp Clone
Replies: 858
Views: 88122

Re: [Build Thread] Jasper, an EDP Wasp Clone

Hello Friends First post here but have been stalking for years. Just built a Japer kit, powered up and worked right away so im happy about that. :party: I have one question tho: it appears that the tuning for OSC2 zeros at roughly one a clock. Is this normal? Havent seen anything in the documentati...
by FactoryDefault
Fri Nov 29, 2019 3:28 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

synthcube wrote:recent/current recipients of 1601 kits from this run, you may be missing parts envelopes for three parts- and if so, those will be on the way to you via a separate envelope...
Would one of these envelopes by any chance contain 16 pin sockets? I am short a couple... :hmm:
by FactoryDefault
Fri Nov 29, 2019 11:56 am
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

Dear @synthcube, could we get the additional BOM for the divider section? At least know which design it is based upon? I have acquired all components for the main 1601 pcb via Dsl-man but the side pcb is still a mystery. Here's the divider add-on GitHub page: https://github.com/foxacid/1601-addons ...
by FactoryDefault
Thu Nov 28, 2019 10:19 am
Forum: Music Tech DIY
Topic: The (real) Jupiter 8 Clone
Replies: 100
Views: 14467

I’d love a JP8 in keyboard form but I realize that’s going to make this project more complex and less affordable.
A desktop format along the lines of the prophet 6/OB 6 would be best for me.
Edit: No preference for me on cpu or ICs as long as it sounds right and is serviceable.
by FactoryDefault
Wed Sep 11, 2019 6:02 pm
Forum: Music Tech DIY
Topic: TTSH Ver.3 (rev.8) General build thread
Replies: 2031
Views: 118239

I think my super hot solder iron may completely distory some of my jfets. Not sure if there is any research to support this but you can buy heat sinks to help protect your jfets or any other rare and delicate components from heat. They look like small copper alligator clips and you attach one to ea...
by FactoryDefault
Mon Aug 12, 2019 5:02 pm
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 989
Views: 79625

This is great news!
Question about the most important aspect of the 1601 kit: :hihi:
At what point do we choose the wood species for the end cheeks?
I don’t remember being given the choice yet. That doesn’t mean it didn’t happen - it just means I don’t remember it happening. :hmm: :hmm:
by FactoryDefault
Sat Jul 20, 2019 10:53 am
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1277
Views: 70579

Excellent!! I'm kind of thinking I should put 2 pin headers on board b to accept a plug-in version of the AT board for the next round of boards, that way all you'd have to do is wire from the sensor to the that board. Of course then I'd want to also ideally put a pot in the filter section for atten...

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