Search found 1482 matches

by devinw1
Thu Aug 06, 2020 3:54 pm
Forum: Music Tech DIY
Topic: Project PRO2021 - A Pro-One keyboard synth
Replies: 1269
Views: 65403

Re: Project PRO2021 - A Pro-One keyboard synth

Can you voltage probe the outputs (pin 1 and 14) of U104? Check the octave switches to make sure you get 0, 1, 2, and 3 volts added with each position.

For the VCA issue; does the main volume knob function correctly? Also, obviously check that the synth is not on "Drone" mode! :D
by devinw1
Wed Aug 05, 2020 2:16 pm
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 86
Views: 2886

Re: Moog Memorymoog sucessfully cloned

Soundin' really nice!
by devinw1
Wed Aug 05, 2020 2:13 pm
Forum: Music Tech DIY
Topic: Modular Addict taking a break?
Replies: 6
Views: 517

Re: Modular Addict taking a break?

Whatever's going on, it's not a good look. At very least put a real explanation on the landing page rather than some ambiguous attempt at humor. I've been dealing with them successfully for years, but even for me this is off-putting. Well, it doesn't take a giant leap to guess it probably has somet...
by devinw1
Wed Aug 05, 2020 10:32 am
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 455

Re: What we do and why we do it?

tele_player wrote:
Tue Aug 04, 2020 4:51 pm
emmaker wrote:
Tue Aug 04, 2020 3:22 pm
Another thing is for myself at least I'm not all that cost couscous.
Couscous.
Love that stuff. Very fast to cook too. :tu:
by devinw1
Tue Aug 04, 2020 3:20 pm
Forum: Music Tech DIY
Topic: What we do and why we do it?
Replies: 17
Views: 455

Re: What we do and why we do it?

I'm no authority on the matter but I've always figured the stuff that is directly tied in with the generation of the sound (namely the VCOs, VCAs, and fitlers) ought to be analog. Why? It's just easier to sound analog when it's analog. And it's fun. To me anyway. On the other hand, there are plenty ...
by devinw1
Mon Aug 03, 2020 11:34 am
Forum: Music Tech DIY
Topic: Wooden Front Panels
Replies: 39
Views: 5174

Re: Wooden Front Panels

Another way to do it, if you are machining your own panel would be to just glue on thin veneer to aluminum and then machine that and laser or mark it. Speaker guys use that stuff all the time. It comes in all kinds of woods and is very thin. 1.6mm aluminum plus some .5mm wood glued on would get you ...
by devinw1
Fri Jul 31, 2020 10:10 am
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

Ah yes, I know all about these having restored a couple Oddesseys :D. The only downside was (with at least the ones I bought which were marketed specifically as Arp caps and the right colors etc..) you had to heat them just the perfect abount with a heat gun and then push them on. It's not difficult...
by devinw1
Thu Jul 30, 2020 8:02 pm
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

Got a couple proto panels in and they look sweet! Here is the SMD unit. I still have to select a better noise Q for this one, but other than that it's lookin and sounding sweet! TBH I am not thrilled with the slidercaps i got from Aliexpress...they seem to big for my liking. I will keep looking! Any...
by devinw1
Wed Jul 29, 2020 5:29 pm
Forum: Music Tech DIY
Topic: Whiskers
Replies: 9
Views: 333

Re: Whiskers

Electroless nickel plate should work too.
by devinw1
Tue Jul 28, 2020 5:23 pm
Forum: Music Tech DIY
Topic: Whiskers
Replies: 9
Views: 333

Re: Whiskers

Also, if you happen to have other stuff that's similar, it actually isn't very costly to have em strip and replate, since it's ususally just a minimum batch fee. The ano+plate shop next door to my day job will do several of the more common platings for a $55 lot fee. Of course if the parts are large...
by devinw1
Tue Jul 28, 2020 3:17 pm
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 86
Views: 2886

Re: Moog Memorymoog sucessfully cloned

Nice. I haven't played a MM before, but from the pics it looks like it is like the MiniMoog in that it may have more WOODWORK than sheetmetal work on the chassis! Like fine pieces of furniture, those old Moogs!
by devinw1
Tue Jul 28, 2020 12:43 pm
Forum: Music Tech DIY
Topic: Whiskers
Replies: 9
Views: 333

Re: Whiskers

That's pretty wild. I'd imagine those coming off and getting into electronics could cause some serious "fun"! I wonder how well it would work to mask off all the outside, clean the inside, and then apply an etching primer and epoxy paint to the inside. I suppose the whiskers would still continue to ...
by devinw1
Fri Jul 24, 2020 11:57 am
Forum: Music Tech DIY
Topic: Four-Layer PCB Stackup
Replies: 12
Views: 324

Re: Four-Layer PCB Stackup

I have a sweet presentation on PCB layout that one of our EEs got from a seminar. I'll grab it next time I'm on my work PC and see if i can upload it. It's pretty detailed.
by devinw1
Fri Jul 24, 2020 11:13 am
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

Mmmmm fresh produce! :D
by devinw1
Fri Jul 24, 2020 10:09 am
Forum: Music Tech DIY
Topic: Questions on the Prophet 5
Replies: 20
Views: 454

Re: Questions on the Prophet 5

IMO, this would be a case, for the digital end to just re-do all it with a modern microprocessor and write firmware to behave the same way as the original. It will end up cheaper most likely, and parts sourcing won't be an issue. I realize this would be a good amount of work, but I think it's the wa...
by devinw1
Fri Jul 24, 2020 10:01 am
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

I had a feeling ya'll might say that. I guess I got lucky on the first one!

I agree though I think I will change that part to Thru hole. It's easier to do the selection that way.
by devinw1
Thu Jul 23, 2020 11:51 pm
Forum: Music Tech DIY
Topic: A subharmonic synthesiser and polymetric sequencer with Teensy 4 and audio library
Replies: 18
Views: 524

Re: A subharmonic synthesiser and polymetric sequencer with Teensy 4 and audio library

Very cool man. Nice work. Agree on the timeline too. Impressive speed you work at! I've been told my productivity is good but I think you beat me lol!
by devinw1
Thu Jul 23, 2020 11:49 pm
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

Well that was easy. I missed the ground connection on the main MUX...lol. put on a jumper and she's good to go. Only minor issue is the SMT version doesn't seem to have as good of noise as the THT. I used what I thought was the SMT version of the BC548 (BC848). The noise based s&h waves are much slo...
by devinw1
Thu Jul 23, 2020 3:46 pm
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 86
Views: 2886

Re: Moog Memorymoog sucessfully cloned

SphericalSound wrote:
Thu Jul 23, 2020 10:52 am

Maybe you would like to contact Behringer to mass produce your baby.
Please don't. Haha.

If you do, please make sure you are paid AMPLY for your R&D work.
by devinw1
Thu Jul 23, 2020 12:21 am
Forum: Music Tech DIY
Topic: A new thru zero triangle core VCO
Replies: 238
Views: 14754

Re: A new thru zero triangle core VCO

huffnPuff wrote:
Thu Jul 23, 2020 12:01 am
This works :)
So the 1st is the TZ0 and the 2nd the EN129?
Correct!
by devinw1
Wed Jul 22, 2020 11:53 pm
Forum: Music Tech DIY
Topic: Moog Memorymoog sucessfully cloned
Replies: 86
Views: 2886

Re: Moog Memorymoog sucessfully cloned

Absolute madness. I love it.

Welcome to the best forum on the web btw!
by devinw1
Wed Jul 22, 2020 11:50 pm
Forum: Music Tech DIY
Topic: Something new I built - fun with decade counters
Replies: 225
Views: 6627

Re: Something new I built - fun with decade counters

I got a all-SMT layout done (except the ATMEGA) and got 5 made with JLC'S SMT service and they look really good, BUT I hosed something up. VCO and counter core is working as evidenced by the sub octave square working, but something with the segment core Mux or DAC is not right because none of that i...
by devinw1
Wed Jul 22, 2020 11:42 pm
Forum: Music Tech DIY
Topic: A new thru zero triangle core VCO
Replies: 238
Views: 14754

Re: A new thru zero triangle core VCO

huffnPuff wrote:
Wed Jul 22, 2020 11:10 pm
Thanks. The clip doesn't load though.
Weird! I have it set to public. SoundCloud does kinda suck though. Lemme try a direct attachment:
TZ0 and EN129 Mod Env.mp3
by devinw1
Wed Jul 22, 2020 8:36 pm
Forum: Music Tech DIY
Topic: A new thru zero triangle core VCO
Replies: 238
Views: 14754

Re: A new thru zero triangle core VCO

A demo would be great! I did see the video but I'm still uncertain about what to expect. OK, here ya go. I quickly patched in the same modulation source to both FM inputs and put a envelope (with max attack speed) to the Env in on TZ0 and to a VCA to patch into the EN129. VCA was a L1 quad VCA. To ...

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