Preliminary look at the MIDI controlled SID @256byteram

Uploaded December 2009 | Updated September 2026, 2 weeks ago

This is what I used for the two Brandenburgs I recorded a while ago, except I've added an LCD display and a basic interface. It's very preliminary at the moment.

There are four integrated circuits used here. An ATMega8, a 74LS374, a 74LS138 and the SID itself. All software is running on the ATMega8, interpreting MIDI commands, controlling the SID, reading the users input and adjusting the display.

My software is a complete mess however.

I'll be uploading details in the near future for anyone who wants to build this.

Preliminary look at the MIDI controlled SID

Dual Octave SID (Parallax, direct capture)

Telecom - Vision 2000 Customers Come First (1986)

Blaupunkt Colorado Colour Television (circa 1975)

$More Television Fractals This is a CCTV multiplexer which can show four individual cameras on a monitor in four quadrants, which I have connected a single camera to, then pointed back at the monitor. The effect is to multiply the image by three (in this case) every time the image goes through the loop. This creates something resembling a fractal. Ive found leaving the fourth quadrant disconnected gives the best results. Strictly speaking, this isnt a completely analogue process, as the multiplexer is a digital device with a frame buffer. The same effect could be done (and has been done) with three monitors. The camera used is a B&W vidicon security camera.$