Search found 154 matches

by FactoryDefault
Sat Feb 15, 2020 8:20 pm
Forum: Music Tech DIY
Topic: pitchbend / mod wheel parts needed
Replies: 2
Views: 184

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: 874
Views: 62014

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: 874
Views: 62014

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: 874
Views: 62014

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: 874
Views: 62014

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: 81
Views: 8185

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: 833
Views: 76095

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: 874
Views: 62014

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: 874
Views: 62014

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: 70
Views: 8396

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: 1957
Views: 95293

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: 874
Views: 62014

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: 1244
Views: 56346

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...
by FactoryDefault
Fri Jul 19, 2019 12:15 am
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

I finally got around to installing aftertouch in a semi-permanent way. ("Semi" because velcro was involved) Thanks to Altitude for the board. I haven't worked with 0603 components before. Damn those things are SMALL! Don't know if you can see but I forgot to order 0603 diodes and got impatient... If...
by FactoryDefault
Wed Jun 19, 2019 4:48 pm
Forum: Music Tech DIY
Topic: Solder fumes, Flux, health issues and extractors
Replies: 27
Views: 1326

bookends wrote:I got this one

https://www.ebay.com/itm/253332906849

No doubt other AC power footswitches are available
Thanks.
by FactoryDefault
Tue Jun 18, 2019 3:46 pm
Forum: Music Tech DIY
Topic: Solder fumes, Flux, health issues and extractors
Replies: 27
Views: 1326

bookends wrote:an AC footswitch under my bench
Great idea!
My hakko 430 isn’t particularly loud but after a while it does get fatiguing.
Did you go with a latching or momentary switch?
by FactoryDefault
Mon Jun 17, 2019 3:47 pm
Forum: Music Tech DIY
Topic: Solder fumes, Flux, health issues and extractors
Replies: 27
Views: 1326

After building a few larger back to back diy projects with no ventilation, I developed a rosin allergy. I did some research and bought a hakko 430 extractor. Found a deal on eBay for the main unit and improvised a hose as the hakko hose was prohibitively expensive. I mounted the hose on a cheesy $10...
by FactoryDefault
Thu Jun 13, 2019 11:37 am
Forum: Music Tech DIY
Topic: ARP 1601 clone Build Thread
Replies: 874
Views: 62014

Purveyor2 wrote:Noob question about 1601. Is there a clock input?
Yes, but when you advance the sequencer using the step input, you lose the pwm functionality.
Not a deal breaker but I was a little disappointed when I found that out. I found a workaround though - an external cv controlled gate length circuit.
by FactoryDefault
Wed Jun 12, 2019 2:33 pm
Forum: Music Tech DIY
Topic: TR-606 multi trigger out mod guide
Replies: 29
Views: 3190

by FactoryDefault
Mon Jun 03, 2019 2:26 am
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

I figured someone with bit more knowledge of the circuit will find a better spot to patch those in. I think Devin’s idea about connecting to an existing mod buss summing node via a 100k resistor is the best one I’ve seen. There is a summing node on the positive op-amp input for each of the 2 mod bu...
by FactoryDefault
Fri May 17, 2019 2:00 pm
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

Troubleshooter wrote:Aftertouch adding extra resonance would be really cool. Taking out R1157 and adding a mix of the res pot and aftertouch CV would do the trick not?
That would be cool. Pretty soon this thing will have more modulation options than a matrix 12!
by FactoryDefault
Fri May 17, 2019 11:58 am
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

devinw1 wrote:Man, I ALMOST put a third auxiliary 6 pin connector on the PSU for future expansions too. That would have been handy.
Yeah hindsight is always 20/20 !

I have some molex pins left somewhere. Maybe I can make a y cable.
That will be cleaner than soldering wires onto pads on the board...
by FactoryDefault
Fri May 17, 2019 1:23 am
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

I tried some different things with aftertouch this evening. First I tried some passive stuff - adding the strip between different pins of the mod wheel and the board. Pin 3 kinda worked but really light pressure turned modulation on full. When adding it to pin 1, increased pressure made modulation l...
by FactoryDefault
Thu May 16, 2019 12:30 pm
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

Troubleshooter wrote: Here is how she looks
I vacillated over the wood color and eventually went with the user guide.
Your dark stain looks awesome. I love your keyboard stand too!
by FactoryDefault
Tue May 14, 2019 6:17 pm
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1244
Views: 56346

Wait, so do you want the aftertouch amount to be attenuated through the mod wheel then? I hadn't considered that. Was thinking about having it feed the mod wheel bus but work independently of the mod wheel. Would definitely be easier to add to that existing summing node at U101A than make a new one...

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