Este post vai como resposta a um inscrito no meu canal do Youtube, pois não consegui responder diretamente a ele (por algum problema no Youtube).
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Hi Eierreiter
Thanks for you visit.
It's really good to know that we are not alone... I have been dreamming with Minimoog since my teenages...
About the case, I made it with normal wood, some pices of aluminium plate. For fixing the panel I used a so called hinge for piano.
My dificulty was the real dimensions of Minimoog case. As I was not able to get the official dimensions, I made some assumptions around the keyboard size and made my own case (with dimensions I defined). It was not exactly the same but it was very very close to that. I think it was nice.
Its explained on this blog (previous posts).
For the keyboard I got a Yamaha out of order and used the keyboard mechanism. So I decodified his keys and developed a microcontroler based circuit to decode the key AND generate de notes. For square waveform it was done; so I developed a waveshaper to get the triangle, saw, pulse and tri-saw waveforms. Sincerelly, it was nice... I will post more samples as soon as possible...
Well for left hand controller, I'm on the road yet. The mechanism is almost ready, as can be seen here. I used 1.5mm thin aluminium plate and a poor mechanism for pitch bend (it is not so good; I will improve that...). As I'm generating the waves digitally (with a microcontroller), I'm developing the algorithms for modulation. I supose I will be finished on February/March of 2011 (I hope...). If you want I can explain this with more details...
For the VCF I used the CA3046 that is an array of matched transistors incapsulated on a chip. Moreover, I selected the other transistors in the ladder, so my VCF worked nicely.
So, if you have any other note, I will be pleased to help.
And if I have some question, I will send it tou you.
Cheers
Gustavo
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