Search found 120 matches

by eljay
Thu Aug 27, 2020 12:25 pm
Forum: Music Tech DIY
Topic: MFOS SMD LFO BOM
Replies: 1
Views: 51

Re: MFOS SMD LFO BOM

It's on the download page for the MFOS Eurorack VCLFO on the Synthcube website, same place you order the PCB from.
by eljay
Fri Aug 21, 2020 11:46 am
Forum: Music Tech DIY
Topic: Using FPD for paper drilling template?
Replies: 7
Views: 148

Re: Using FPD for paper drilling template?

Absolutely yes. Select the print options, 'Print in Wire mode' and 'Print reference points'. I attach the template to the panel by cutting it out with a modelling knife exactly on the outside lines, sticking down with Scotch tape especially over each drill point. Use a metal hole punch to mark the c...
by eljay
Thu Aug 20, 2020 7:30 am
Forum: Oakley Sound Systems
Topic: Noise level outputs and use with RM 4014 to generate percussive sound
Replies: 4
Views: 85

Re: Noise level outputs and use with RM 4014 to generate percussive sound

Thanks Tony for the clarification, I had used the CV input to the Noise Filter. I've tried again putting the sequencer CV into the HPF and I can get it to work using the method you describe but it is very quiet so I'll stick with the Clipped output from the Sample/Slew.
by eljay
Thu Aug 20, 2020 4:48 am
Forum: Oakley Sound Systems
Topic: Noise level outputs and use with RM 4014 to generate percussive sound
Replies: 4
Views: 85

Re: Noise level outputs and use with RM 4014 to generate percussive sound

Thanks for the informative reply Tony it is very helpful. I have re-tried using the Noise module White Noise output and connecting to the RM4014 as you describe and I can now get the percussive effect I was expecting, the noise output from the Sample/Slew module also works. The output levels are ver...
by eljay
Wed Aug 19, 2020 3:47 pm
Forum: Oakley Sound Systems
Topic: Noise level outputs and use with RM 4014 to generate percussive sound
Replies: 4
Views: 85

Noise level outputs and use with RM 4014 to generate percussive sound

I've been putting together a patch to emulate the ubiquitous Pink Floyd track 'On the Run', why, because it has to be done and I was keen to get something sounding close to the original. I'm pleased with the initial results particularly now I'm using the Diode Ladder Filter which gives a very simila...
by eljay
Wed Aug 05, 2020 8:24 am
Forum: Music Tech DIY
Topic: MFOS Keyboard Controller Sample&Hold
Replies: 13
Views: 268

Re: MFOS Keyboard Controller Sample&Hold

Try this thread in the Music From Outer Space forum, it may help.

viewtopic.php?f=80&t=224646#p3159673

You could also PM the thread author for further guidance.
by eljay
Fri Jun 26, 2020 3:29 am
Forum: Oakley Sound Systems
Topic: TM3030 freezes upon receiving multiple MIDI notes at once
Replies: 19
Views: 932

Re: TM3030 freezes upon receiving multiple MIDI notes at once

Many thanks for the update. I have downloaded and applied the update, initial testing seems to indicate my locking up problem is resolved. I observed the following whilst performing the update : After sending the "trigger" file the Slide and Power LEDS were lit, I don't know if this is deliberate to...
by eljay
Sat Jun 20, 2020 4:51 pm
Forum: Oakley Sound Systems
Topic: TM3030 freezes upon receiving multiple MIDI notes at once
Replies: 19
Views: 932

Re: TM3030 freezes upon receiving multiple MIDI notes at once

Many thanks sequentix for taking the time to follow up on this, it's an old piece of code so it's brilliant you are still willing and able to support it. I look forward to hearing that you have been able to resolve the problem successfully.
by eljay
Fri Jun 19, 2020 6:41 am
Forum: Oakley Sound Systems
Topic: TM3030 freezes upon receiving multiple MIDI notes at once
Replies: 19
Views: 932

Re: TM3030 freezes upon receiving multiple MIDI notes at once

I have noticed a similar problem when the TM3030 has a midi connection to my Korg EMX-1. I haven't done an in depth analysis of the problem but I suspect it's related. The TM3030 locks up if the midi is connected and then the EMX-1 is powered up or if the pattern is changed. I suspect it sends somet...
by eljay
Tue Jun 16, 2020 3:48 am
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

IMG_0940.JPG Rings module successfully completed and sitting proudly next to previously completed Braids. Blank panel and PCB from Amazing Synths. I had a couple of issues during build and test. My first attempt to drag solder the 64-pin MPU was unsuccessful, I managed to bend a couple of pins and ...
by eljay
Sat Jun 13, 2020 2:34 pm
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

Hi subdrift, in answer to your question I hand solder all the components on the board using a round tip iron. I have a x5 dioptre lens in an LED illuminated angle poise lamp so that I can see what I'm doing. I have used solder paste, applied with a pin across the legs of the chip and a hot air solde...
by eljay
Thu May 28, 2020 11:58 am
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

IMG_0938.JPG Third successful build completed and working, a Braids module. PCB and bare front panel from Amazing Synths and I've again used a self adhesive Vinyl Matte paper to print a covering on my inkjet printer. I'm getting more confident with my SMD skills and this time I successfully used th...
by eljay
Fri May 22, 2020 4:16 pm
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

That encoder works fine, it does require careful mounting to the front panel and soldering to the PCB because the Bush length (the threaded part of the shaft that you fix the front panel nut to) isn't quite long enough. The PCB just required a little squeeze toward the front panel to get enough thre...
by eljay
Wed May 13, 2020 12:21 pm
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

I have tried drag soldering and generally use the technique on all the ICs except the processor chip. I tried unsuccessfully to drag solder a processor chip and have since adapted a solder paste technique for these.
by eljay
Wed May 13, 2020 10:10 am
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

IMG_0935 (2).JPG Second successful Mutable build, a version 1 Tides, board and bare metal panel from Amazing Synths. I've used Vinyl Matte self adhesive paper to print out and attach a front panel cover (not as impressive as the etched aluminium above but it works Ok for me and cost about 50p). Hav...
by eljay
Wed May 06, 2020 4:03 pm
Forum: 5U Format Modules
Topic: Best 904A clones in 1U?
Replies: 18
Views: 1189

Re: Best 904A clones in 1U?

The Oakley Discrete Ladder Filter is excellent. http://www.oakleysound.com/dlf.htm

There are sound samples on the site. It can be built as a 1U core module or 2U full width.
by eljay
Wed Apr 29, 2020 2:41 am
Forum: Oakley Sound Systems
Topic: Euro Sequencer - It's a hit!
Replies: 2
Views: 1094

Re: Euro Sequencer - It's a hit!

I.m not quite sure what you want pics of. Unfortunately I didn't make a build record, which I've done for some builds recently, so I can't show that. If it's just pictures of the Euro Sequencer and boards then there are plenty on the Oakley web site and in the build documents, http://www.oakleysound...
by eljay
Mon Apr 20, 2020 3:11 pm
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

Re: DIY Mutable successfull builds hall of fame

I searched for SD-50BV on Mouser, there are plenty in stock. These fit and work perfectly.
by eljay
Mon Mar 09, 2020 5:38 am
Forum: Music Tech DIY
Topic: Erica Synths Polivoks EG II - Output problem
Replies: 2
Views: 307

Re: Erica Synths Polivoks EG II - Output problem (FIXED)

Thanks ronski for the offer of assistance, although in this instance I don't think a close look at the board would have helped. This fault led me a merry dance because it only seemed to be present when the Envelope Output was under load. I finally tracked the problem down to a faulty B100K pot contr...
by eljay
Wed Mar 04, 2020 7:17 am
Forum: Music Tech DIY
Topic: Erica Synths Polivoks EG II - Output problem
Replies: 2
Views: 307

Erica Synths Polivoks EG II - Output problem

I've just built two Polivoks Envelope Generators V2. One is working in all instances, the other fails to work correctly in a specific situation. Whilst the obvious answer is 'avoid the specific situation', I would like to resolve the issue in case it emerges in other situations that I have yet to co...
by eljay
Thu Feb 20, 2020 5:02 pm
Forum: Music Tech DIY
Topic: DIY Mutable successfull builds hall of fame
Replies: 676
Views: 81467

DIY Yarns

My first Mutable build, really pleased with the end result. Board and plain metal front panel from Amazing Synths, great service, fast delivery and useful supporting advice. Many thanks Adam. Only my third SMD project, it really stretched my abilities but I like a challenge. I don't think I will get...
by eljay
Sun Feb 16, 2020 11:20 am
Forum: Oakley Sound Systems
Topic: Euro Sequencer - It's a hit!
Replies: 2
Views: 1094

Euro Sequencer - It's a hit!

Just finished building the Oakley Euro Sequencer. Took most of my spare time over the last week and I didn't rush. My second SMD project and it's gone without any errors or problems. I watched a few You Tube videos on Drag soldering and invested in a No Clean Flux Pen, the results were amazingly goo...
by eljay
Mon Feb 10, 2020 5:47 am
Forum: Oakley Sound Systems
Topic: Euro Sequencer - TL074CDR selection
Replies: 1
Views: 360

Euro Sequencer - TL074CDR selection

Just building the Euro Sequencer and I have a query about the TL074CDR that is required. I assume either a TL074CDR or TL074CDRG4 is ok to use? They have different supply voltage ranges, the TL074CDR is 7V to 36V, I'm assuming that is a 'total voltage range' i.e could be using +/- 12V giving 24V, or...
by eljay
Thu Jan 23, 2020 11:24 am
Forum: Music Tech DIY
Topic: Thomas Henry's 2017 CEM3340 VCO MAXIMUS (PCBs/Panels)
Replies: 197
Views: 29463

Re: Thomas Henry's 2017 CEM3340 VCO MAXIMUS (PCBs/Panels)

Thank-you y ixtern for your reply, I read through your material posted and the full modification notes. Although I didn't quite follow your math logic I made the change to RS1 to 10K. This immediately showed a beneficial improvement but whilst the frequency now seemed stable there was still some flu...
by eljay
Wed Jan 22, 2020 12:03 pm
Forum: Music Tech DIY
Topic: Thomas Henry's 2017 CEM3340 VCO MAXIMUS (PCBs/Panels)
Replies: 197
Views: 29463

Re: Thomas Henry's 2017 CEM3340 VCO MAXIMUS (PCBs/Panels)

I've just built the first of two VCO Maximus oscillators, boards and Euro rack front panels and CEM3340 Issue G ICs from Thonk. I built it according to the latest build guide and BOM (29/05/2018) and selected the 'Using TL431' BOM changed values. This includes the main BOM table value for R4 at 1.2K...

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