This video is the first of two videos about using small rotary switches to implement a sort of "preset" for the Bastl BitRanger. I use the term 'preset' here very loosely (the patches are not in any way native to the device), but I decided that terms like 'memory' or 'pattern' or 'sound' didn't really make the point either. It's just a way to switch the routing between patch points, simple as that. The little selector switch I'm using in this first video is a 1-4 Coded Rotary Switch (part id 774-220ADC04 at Mouser Electronics, $2.25 each). I have the breadboard flat for the video but it actually works nicely when stuck to the side of the BitRanger. The switches are mounted on the breadboard with Sugru and have some wooden buttons superglued on as knobs.
NOTE: If you want to do this sort of switching at a larger scale you should definitely take a look at Bastl's own BitRanger add-ons, the Synapsis and BitBoard (ps the switches in these videos can go right on the BitBoard).
The second video is at [ Ссылка ]
TIMELINE
00:00 Atari Punk Console with sound-activated 2D 'plasma' disk.
01:00 Some background. Stepped-Tone Generator (p. 26 in "Timer, Op Amp & Optoelectronic Circuits and Projects" by Forrest M. Mims III, Master Publishing Inc., 1986), with mods it's known as the Atari Punk Console (see [ Ссылка ] ). The 555 timer chip has a fascinating origin and history (see Make:Electronics by Charles Platt or [ Ссылка ] ). I screenprinted the 555 t-shirt that I'm wearing in the video for going to Moogfest a few years ago. I got the kit to build this particular APC (from a clearance shelf at Target) just to see the kit design; if you want to make one I'd recommend finding instructions online and ordering the stuff yourself or possibly finding an inexpensive kit.
04:00 A 4-minute overview of the BitRanger
06:45 Seriously, wear headphones to really understand the BitRanger.
08:10 BitRanger has a cool manual. You can see the pdf at [ Ссылка ]
08:30 A basic patch to start things up.
09:30 Another patch. This one is ideal for switching.
11:15 Hooking up a selector switch.
12:45 The next video will be released promptly after this one.
13:25 I'm using the Korg SQ-1 sequencer CV-out to control the BitRanger VCO. It's running fast here, but it's also nice to slow the sequencer down, cut the active steps to something like 4, and use it to progress the root tone on the BitRanger.
13:45 Dream machine Make Noise 0-C0AST slope output controlling the BitRanger VCO.
14:00 I'm feeding the two BitRanger audio channels and the 0-C0AST audio into the Bastl Dude mixer with the 0-C0AST slope output controlling the BitRanger VCO again, but this time with the BitRanger BYTE stepped voltage going back into the 0-C0AST 1V/Oct.
OTHER LINKS
[ Ссылка ]
[ Ссылка ]
[ Ссылка ]
