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Please read all of the description before buying.
This listing is for 2 PCBs, see my other listings for 1 or 3 PCBs
PLEASE NOTE: I do not accept offers on this item, if the best offer button appears on this listing it is because ebay added it without my consent, so do not waste your time and mine by submitting an offer as it will be refused, the buy it now price is 40 plus postage, ebay also seem to think that they are able to automatically lower MY selling price after 5 days, if this happens and you win the item, the order will be cancelled, as again it is being done without my consent. Thanks for understanding.
On offer here is a PCB to build your own DIY synth based around CMOS chips, it is based on a series on the Hackaday website by Elliot Williams, I made a few of these and had a few boards left over, last couple remaining.
It can be used to make all manner of things, examples include drum machines, drone synths, sequencers and so on, or it can just be built as a playground as intended for further prototyping, it is up to the builder. It can be built as a complete project, or just the sections you require, it can be built into a suitable case as a standalone instrument for example a drone synth, with the controls on flying wires rather than soldered directly to the PCB etc.
It goes without saying that you will need to have a fair amount of experience and the tools and parts required to build this, I would not recommend it to complete beginners. No documentation other than what is in this listing is provided, so if this is not enough then this pcb is not for you.
Parts to complete the build are not supplied, you need to source them yourself and budget for the cost of those, I think it ended up costing me about 15 in parts to build, but it depends on what components you buy and where you buy them from.
NOTE: This is purely a DIY project and I offer no technical support, search for the project page at the hackaday website (klangorium logic noise) – ebay forbids me to post the link unfortunately for some bizarre reason, which is why I had to end the previous listing with the web link.
Klangorium Parts list
Note: This list is what I used, I believe it to be correct, but use at own discretion.
Please note there may be errors, omissions, wrong quantities or incorrect values, although I did try to ensure it is correct the responsibility is your own, and certain parts can be down to user preferences anyway.
Semiconductors 20 1N914 or 1N41481 2n3904 2 5mm LED red/green/orange as preferred
ICs2 cd401061 cd40151 cd40511 cd40401 cd40171 cd40701 cd4069ub
IC sockets optional as appropriate (recommended)14 way x 416 way x 4
Capacitors ceramic all 2.5mm pitch100n x 1810n x 7 (6 used in “Six Oscs”)
Capacitors electrolytic 2.5mm pitch10uf x 3100uf x 21uf x 1
Resistors all 1/4 or 1/8w2 x 10k3 x 1k20 x 100k*5 mixed values for “Six Oscs” I used 100k*, 220k, 330k, 390k, 410k, 560k
10 Alpha 9mm snap in potentiometer 100k1 Alpha 16mm dual potentiometer 100k + knob as required
Resistor networks 9 pin 8 way common array1x 100k and 1x 10k if you want different gain on left/rightOr2x 100k if you want left and right to have same gain
2.54mm pitch female pin headers2 way x 203 way x 184 way x 125 way x 16 way x 28 way x 410 way x 212 way x 2
1 x 3.5mm stereo socket
9v PP3 battery wired connector
2 x tactile switches 6mm
Mixed pack of male to male breadboard jumper cables, flexible type.
I also recommend to mount the board on a piece of perspex or similar along with a solder-less breadboard, there are 6x M3 sized holes, so 6x M3 bolts, nuts and standoffs would be needed.
Use standard leaded solder for best results.
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Category: Musical Instruments:Pro Audio Equipment:Synthesisers and Sound Modules
Location: King’s Lynn