Front panel prototyping

I'm designing my own panel layouts with the great free and opensource vector graphics program: Inkscape (available for Windows, Mac, and Linux!). This program creates SVG files, and with the clone function it's easy to draw consistent panel elements. For example, if I change the size of the original element, all of the clones resizing too.


I'm tested the layout, and it seems to everything is at usable distance. The graphics needs to be refined, but the dimensions are fine.

One half of the PSU

Hoooraay, two of the +15V supply rails are built up, and functioning! Each of them is capable of cca 500 mA, which is quite good for me. The red leds shows the 2 regulated output, and the yellow ones indicating the unregulated. Next time, of course I will finish the -15V side.

The PSU parts

We have done with the PSU PCB, and drilling is completed. My father helps me to complete this project, he has the experience for this. The PSU parameters are: +/-15V, 2x1A, with two 7815 and two 7915 voltage regulators.
We need to mount the aluminum heatsinks, the transformer, and then begin to solder.

The progress of ADSRs and VCFs

Yesterday i've spent a little time working with the ADSRs and Minimoog VCF boards. When my ordered parts arrived, i've checked the list, soldered few resistors, capacitors, and trimmers in.
Fixed a few shorts, etc.

The current state of the PCBs is this:


I've ordered a toroid transformer, and some other parts for the PSU. I need to get some time, and I will continue these PCBs, and start to draw the PSU schematics...

Video: The future demised

Video: Mortum
Music: Vinnui


Download high quality video

Building the Minimoog VCF clone PCBs

As you can see, we are working hard! :) This time in the kitchen. :) I don't have a proper room for this, which is dissapointing, because i need to move the stuff in and out every time...
My son loves to poke with the tools, specially with the dangerous ones: hot, or sharp. :)

Usually i'm missing parts, i need to order a bunch of resistors, capacitors, etc. The VCAs, the ADSRs and the mixer boards also need them, so i'm writing a list.

Still, i need to build a PSU, with a +5V output for a midibox MIDI2CV unit.

Sooo much work to do!

Yusynth VCAs

Because of i'm tired of endless PCB drilling, i've decided to work on the 8 VCA boards. I'm currently missing many parts of this circuit, but it's fun to solder a bit. More news soon...

YuSynth Minimoog VCF Clone and ADSR PCBs

The new batch i've made in the last few days.

• Minimoog VCF Clone (x4)
  
• ADSR (x8)
  

16 etched PCBs are ready

Eight LFOs and eight mixer panels is ready to drill. :) Lots of holes, so it will take a lot of time to complete this task.
In the same time, i'm prepared 4 Minimoog VCFs and 8 ADSRs to etch, and i'm designing the front panel graphics. This synthesizer will be a semi-modular one, like the GRP A6 or the bigger A8 model.

YuSynth LFO, Mixer PCBs

Finally back to the DIY modular business.
The next PCBs i'm making, is the YuSynth VCLFO and Mixer. This time i've made the process at home. In the future i will do this way.


PCBs in the FeCL:
The etched PCBs:
Next time i will make more LFOs, and new modules like S&H/noise, VCAs, ADSRs, Saw animators, some VCFs, Ringmod, Wavefolder, etc... a lot of work.

Updates soon.