Monday, 28 November 2022

Bi-di chopper - nlc - build part 2 - completion

 The build so far.

The B-Di chopper  can be used to process CV and audio signals.

Its a  CV controlled switcher
There are 2 switcher circuits in this module.

Part 1 of the build is here:


I'll use 10R for the power protection.
( don't have any schotty's)

LL4148 diodes


100k b pots

power header, etc


3mm LEDs

This module can be used as a switch.
1 into 2  (eg A into B1 & B2)
2 into 1. (eg B1 & B2 into A)

However its important to remember that Choppers are different from regular switches
as the signals being switched also controls the switching.
Thus things happen that you might not expect.

I'll need to experiment with CVs that you use to do the switching.

The module below is a pretty standard LFO Triangle wave. 0-5V
Works well.

You can find more NLC builds here.

Sunday, 27 November 2022

Digitone - OS update

Some notes on updating the OS of the digitone.

Note, that the digitone keys must have the latest OS to work with overbridge.
Needs OS 1.40


To update the OS there are two methods.
1. StartUp menu method.
2. From the Setting Page (bootstrap upgrade)

1. Start up menu
this uses old fashioned 5pin DIN cables.
Its slow and clunky.
I connected the midi out from my audio interface
into the midi in of the Digitone.

Then press func while turning on the Digitone, 
Then press trig 4

Use the Digitone file transfer application to transfer the .sys  files.

Links to both (file transfer program and the .sys  file) are here:

2. From the Setting Page (bootstrap upgrade)

The second method is much faster and easier.
Uses the USB cable.
Use the same Digitone file transfer application to transfer the .sys  files.

Press this button to enter settings

Enter OS upgrade

you will see this page

My MIDI settings in the file transfer program
This is the SysEx transfer page

You will see this if  file transfer and OS update was successful

Tuesday, 22 November 2022

New Atlantis - Live gig - nov 19, 2022

  Some pics from the New Atlantis gig held at the Uni of NSW.
SATURDAY, NOVEMBER 19, 2022 AT 3 PM – 11:30 PM

This was held in the Esme Timbery Creative Practice Lab

The last New Atlantis gig was held back in March 2021
I hope these gigs will happen more often.

Guest artists include Deepchild (Fathersong full album), Panos (ambisonic set), Icevena, New Sound Waves artists, Strakt, Mark P, Benjamin Carey, Alex White, 80T and a full program of works curated by Vitalise Sydney.





Next day
Breakfast for champions
keto vs carbs

North Wollongong Beach

Kaitlyn Aurelia Smith - Australian Tour - Jan 2023

 These look like fun.

Esp this one ... yes its at 5.30am but the views if the weather is OK should be 
worth the 3.30 am alarm

her second concert is the next day.
Jan 8th

Sunday, 20 November 2022

video feedback - elk elektroniks

 I was at Elk Electroniks on Sat and saw an amazing display of Video Feedback using some old 
analog monitors / cameras. 
Thanks to Troy for bringing these in.

The first few videos used a B/W monitor

Placing and object (such as my hand) between the camera and the monitor 
added even better effects.

This effect has been around for decades. In fact it was first demonstrated in the 1950s and was 
considered a nuisance until discovered by psychedelic visual artists and of course Sci-fi nuts
As a child I watched Dr Who and was mesmerized by the opening sequences.

Those early childhood experiences are looping back on me.

Video feedback is all about loops that occur when a video camera is pointed at its own 
playback video monitor.
There is a delay from camera to display and back.
The camera sees an image, processes it and feeds it back to the monitor, which by
that time has moved on at least 1 image ahead (or may be more).

I think, the greater the delay, the greater the feedback distortion.

and placing objects between deserves more experiments

One final Black/white
and then onto the colour

Many artists have used optical feedback. 
An example is Queen's music video for "Bohemian Rhapsody" (1975).

Below the monitor is a video processor (colour corrector) Sony XV-C900
It was used to adjust things like saturation, brightness, and contrast,

Check out more of Troy's work on YouTube

Elk elektroniks holds regular meetings... about every 6 to 8 weeks.

Elk Elektronik - Shop 3, 266-268 Crown St Wollongong


Check out more of Troy's work on YouTube

The 5th Volt - Live at Elk Elektroniks in Wollongong


Thanks to Carsten (aka The 5th Volt) for the wonderful demo of the AE modular.

some pics.
This is the system before patching

The talk started with a blank canvas and finished with a composition.

The final patched system

For more information about the AE Modular system check out the official site:

You can also join The AE modular forum at:

All Carsten's videos, Instagram posts and Soundcloud clips are available at:

Elk elektroniks holds regular meetings... about every 6 to 8 weeks.

Elk Elektronik - Shop 3, 266-268 Crown St Wollongong