Tuesday, 17 April 2018

Zlob Dual VCA

As the old saying goes..
You can never have enough VCAs
Esp when they are only 2HP wide !!!!

These are some pics of my building of the Zlob Dual VCA
 These are not build notes. Just pics to help me remember should i want to build another one.
The official build notes are here:
https://zlobmodular.com/dual-vca/

There are no hard to find parts.
 The important thing to remember is to keep the height of all components as low as possible.
They need to fit behind a 2HP panel.
 So i bent these trimpots back.
The ICs need to be soldered directly to the PCB to keep their height down.
i ALSO bent the caps down and isolated them with shrink wrap


 Everything fits... beautiful.!!!

These trimpots need to be calibrated to close the VCAs... to prevent audio bleed. I did this by ear.
Works great.
I'll probably build some more.
:-)
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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Wednesday, 11 April 2018

Zlob Mini Mixer

You can never have too many mixers.
(Esp when they are only 2HP wide.)

I'm building a performance Euro case and these will come in very handy.
Zlob stuff is awesome and so cheap esp if you do it yourself.


I've built two already. Two more to go.
These aren't build notes. The official Zlob site with BOM is here:
https://zlobmodular.com/minimix-2/

20K SMD trimmers


oP Amps NE5532










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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Tuesday, 10 April 2018

RYO - Penta Sequencer - Ljunggren Audio

This is a really useful and compact Ljunggren Audio sequencer.
Just 5 steps, but its switchable to 4 & 3 steps.
I may end up using this more as a modulation source than a standard sequencer.
I purchased just the PCB and faceplate

The build is straight forward. Components are easy to find ... mostly mouser.
Just watch the height of the electro caps ... make sure you have enough clearance between the two boards. These are not build notes.
For detailed build notes check out Ljunggren Audio's great site.
http://ljunggrenaudio.com/products/sequencing.html

The sequencer can be powered off 15V (though I'm building this version for Euro's 12V standard).
You can also adjust the CV output voltage ranges. This sequencer is set to 0-5V but its possible to change it to ranges like 0-10V (Buchla ?? etc )
http://ljunggrenaudio.com/products/penta%20modifications.html

bELOW are some pics of the components I used.... from mouser.






The yellow electrical tape is a bit of protection against any shorts between the two boards .. the electro caps I used were too tall.

Leds.




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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Caesarea - Israel

Beautiful and historic town ... on Israel's Mediterranean coast.


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tHE old Roman ampitheatre






















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