Search found 6259 matches

by J3RK
Wed Jul 08, 2020 6:18 pm
Forum: Artist Discussion
Topic: Peter Gabriel...
Replies: 63
Views: 1370

Re: Peter Gabriel...

I just now saw this thread because it popped into the recent threads. Funny, because I've been listening to Intruder a lot lately, (and on a side note "Tonight Tonight Tonight". (yes, not Gabriel, but close enough :lol: ) I can't decide what it is, but since I recently bought a red sports car, and a...
by J3RK
Sat Jun 20, 2020 8:56 pm
Forum: Music Tech DIY
Topic: [Build Thread] UltraFlop-08 Sequencer
Replies: 132
Views: 12564

Re: [Build Thread] UltraFlop-08 Sequencer

I do still have one question on this wonderful Sequencer. When the Clock Source switch is set to External the Internal clock continues to advance the sequencer if nothing is in the External jack or if the Clock in the External is pulsed slower than the Internal clock. Shouldn't the unit stop advanc...
by J3RK
Thu Jun 18, 2020 11:40 am
Forum: Music Tech DIY
Topic: are there any good CD40106 schmitt trigger drum circuits?
Replies: 10
Views: 371

Re: are there any good CD40106 schmitt trigger drum circuits?

I don't know about the 40106 specifically, but you might check out some of Phobos' work over at Electro-Music. He's done a lot of simple-but-nice circuits, including a lot of CMOS/Lunetta type stuff as well. You might also check out the Lunetta sub-forum over there too. One of the first posts that j...
by J3RK
Wed Jun 17, 2020 1:49 am
Forum: Music Tech DIY
Topic: R.I.P. LM3046: byebye affordable temp stabilized VCO's
Replies: 53
Views: 4516

Re: R.I.P. LM3046: byebye affordable temp stabilized VCO's

While the original SSM2030 was not temperature compensated (the tempco resistor was external), it's worth pointing out that the architecture of the 2x30 VCO is identical to the Rossum-designed VCOs in the Emu modulars, and in the Oberheim SEM and OBX. They are very stable in my FVS and OBX. Interes...
by J3RK
Mon Jun 15, 2020 3:58 pm
Forum: Music Tech DIY
Topic: Question about substituting components
Replies: 60
Views: 1355

Re: Question about substituting components

I'm a little late for this response, but related the resistor debate on the last page: There are a few brands that make 1/4W resistors in the smaller size. Panasonic is one of them. Digikey sells them. There are more too, but I can't think of them off the top of my head. Just thought I'd mention tha...
by J3RK
Mon Jun 15, 2020 3:00 pm
Forum: Music Tech DIY
Topic: Connect simple switches to eurorack synth
Replies: 21
Views: 490

Re: Connect simple switches to eurorack synth

why haap over sanway or seimitsu? personal preference? I've always liked Happ/Suzo parts myself, but they're the ones I have the most experience with. They also make the smaller convex buttons that feel very nice. I've been using them for decades though for game devices, so it's really a matter of ...
by J3RK
Mon Jun 15, 2020 1:59 pm
Forum: Music Tech DIY
Topic: R.I.P. LM3046: byebye affordable temp stabilized VCO's
Replies: 53
Views: 4516

Re: R.I.P. LM3046: byebye affordable temp stabilized VCO's

neil.johnson wrote:
Sat Jun 13, 2020 2:16 pm
CEM3340
AS3340
SSI2130 (coming soon)

All temperature-compensated VCOs and all active parts.

Neil
Not to mention using the SSI2164 with a more traditional core.

I'm really excited for the 2130 though. :party:
by J3RK
Mon Jun 15, 2020 11:00 am
Forum: Music Tech DIY
Topic: How can I double a schematic when making my own module?
Replies: 5
Views: 319

Re: How can I double a schematic when making my own module?

As mentioned above, if you're using a software package that handles the netlist between the schematic portion and the PCB layout portion, (I use Proteus for example) you'll definitely want to duplicate it in the schematic portion first. This way it will automatically handle all of the common nets, a...
by J3RK
Fri Jun 05, 2020 3:36 pm
Forum: Music Tech DIY
Topic: [Build Thread] UltraFlop-08 Sequencer
Replies: 132
Views: 12564

Re: [Build Thread] UltraFlop-08 Sequencer

They are R10, R15, R16.
by J3RK
Fri Jun 05, 2020 2:11 pm
Forum: Music Tech DIY
Topic: [Build Thread] UltraFlop-08 Sequencer
Replies: 132
Views: 12564

Re:

Hey! I spent about 12 build hours on this Sequencer, and amazingly it fired up first time with only one issue. The direction switch goes forward up and backward middle and down just like some of the previous posters. This is a Synthcube kit, so I'm assuming they just sent the wrong switch. Testing ...
by J3RK
Fri Jun 05, 2020 2:08 pm
Forum: Music Tech DIY
Topic: [Build Thread] UltraFlop-08 Sequencer
Replies: 132
Views: 12564

Re: [Build Thread] UltraFlop-08 Sequencer

Yes, it's pretty simple actually. There is a voltage divider buffered by an op amp that supplies the CV pots. I don't have the schematic in front of me, but you could easily bring that down to any voltage you like by changing that divider. If I remember correctly the divider is two 100K resistors in...
by J3RK
Fri Jun 05, 2020 1:30 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 304
Views: 22993

Re: The 2020 Show Us Your DIY Builds Thread!

I had this cherry/purple heart wood case that my dad made me sitting around for the past couple of years. It was always too big to ship, so anything I built always went out in either boats or smaller cases. I decided to put some vector rails in one row for LW format modules, and start filling it up ...
by J3RK
Tue Jun 02, 2020 1:45 pm
Forum: Music Tech DIY
Topic: TR-606 - is there any clone in DIY format?
Replies: 177
Views: 21886

Re: TR-606 - is there any clone in DIY format?

That looks great. I'm also mounting a set in a 4U boat, though mine will be a 17x7x3 full panel with some other percussion circuits. Like you said, board mounting will be a small challenge, but it looks like there's plenty of dead space to drill through on the boards to make mounting holes. Might h...
by J3RK
Tue Jun 02, 2020 1:44 pm
Forum: Music Tech DIY
Topic: TR-606 - is there any clone in DIY format?
Replies: 177
Views: 21886

Re: TR-606 - is there any clone in DIY format?

There was a flaw on the panel that I originally posted. The hihat jacks were incorrect. Here is a fixed version.
by J3RK
Fri May 22, 2020 2:18 pm
Forum: Music Tech DIY
Topic: TR-606 - is there any clone in DIY format?
Replies: 177
Views: 21886

Re: TR-606 - is there any clone in DIY format?

Well, this will obviously require hand-wiring, but it will fit in a 12x7x3 Hammond boat. Board mounting will need to be a bit creative as well, but shouldn't be too bad. To keep the spacing, I tossed in a spare VCA, and a dual, manual gate section. Anyone wanting a 4U banana 606 feel free to use/mod...
by J3RK
Fri May 22, 2020 1:42 pm
Forum: Music Tech DIY
Topic: TR-606 - is there any clone in DIY format?
Replies: 177
Views: 21886

Re: TR-606 - is there any clone in DIY format?

Ordered a set. I'll be building it into a 4U boat / panel though. Once I lay out the panel, I'd be happy to post the FPD here.
by J3RK
Fri May 22, 2020 1:15 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 304
Views: 22993

Re: The 2020 Show Us Your DIY Builds Thread!

I built a Quad Function Generator based on the Intellijel Quadra + Expander (which was based on the Buchla 281) into a 5U module. I used a Panel Board to eliminate panel wiring and a Translator Board to connect the Panel Board to the Circuit Board without having to compromise the layout of either o...
by J3RK
Fri May 22, 2020 1:12 pm
Forum: Music Tech DIY
Topic: The 2020 Show Us Your DIY Builds Thread!
Replies: 304
Views: 22993

Re: The 2020 Show Us Your DIY Builds Thread!

GrantB wrote:
Sun May 17, 2020 5:20 pm
More 500? WTF is wrong with me? I should really get back to building Serge panels.
IMG_3983.jpg
IMG_3982.jpg
These are gorgeous! I love the knobs.
by J3RK
Tue May 05, 2020 12:24 pm
Forum: Music Tech DIY
Topic: Simple white noise circuit with 5V? SN76489 ?
Replies: 59
Views: 1327

Re: Simple white noise circuit with 5V? SN76489 ?

This MIGHT work at 5V. It will need some resistor tweaks to get the signal high enough though for sure. I use this as a sample-source for my shift register based designs. Changing the 1.5M and 4.99K resistor can boost the noise a bit. I tweak the resistors until I get around 2V P2P which is sufficie...
by J3RK
Fri May 01, 2020 3:00 pm
Forum: Buchla, EMS & Serge
Topic: Banana system pictures
Replies: 4712
Views: 632292

Re: Banana system pictures

I finally have a modular again after a long time of not being able to build. I actually posted a pic of the panel itself a while back, but now it's fully built, calibrated, and usable. :party: It's also a test-bed for a new set of PCBs. Half of a new lineup. (the other half will be in another panel)...
by J3RK
Fri Dec 13, 2019 1:02 pm
Forum: Buchla, EMS & Serge
Topic: My serge live set
Replies: 13
Views: 2351

:yay: Very nice!
by J3RK
Wed Dec 11, 2019 6:57 pm
Forum: Buchla, EMS & Serge
Topic: Metasonix RS/Serge modules
Replies: 92
Views: 11679

Really liking the sound of these! :party:
by J3RK
Tue Dec 10, 2019 2:51 pm
Forum: Music Tech DIY
Topic: A new thru zero triangle core VCO
Replies: 227
Views: 13889

That does look good!

I'm way behind on my current projects, but this has me eyeing the empty vector rails I have laying around. :hihi:
by J3RK
Tue Dec 10, 2019 2:27 pm
Forum: Music Tech DIY
Topic: What can I do with Speak & Spell devices?
Replies: 21
Views: 1910

The most obvious thing that you can do with Speak & Spell devices would be to phone home I would imagine.

:razz:
by J3RK
Wed Dec 04, 2019 3:31 pm
Forum: Buchla, EMS & Serge
Topic: Banana system pictures
Replies: 4712
Views: 632292

Beautiful! I love small setups. I've been designing some 4U panels to be used that way recently. Just have to finish some wiring. :hihi:

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