[sdiy] Lego synth anyone?

Peter Forrest pforrest at vemia.co.uk
Thu Jan 20 11:24:45 CET 2005


Thinking of relays...... did anyone ever wire up a pinball machine to output MIDI (or CV/gate)?  Sort of random sequences but with some human intervention and frequent repetition of little sections.
Probably a stupid idea, but how easily could it be done?
I'm thinking of old 60s / 70s machines, not more recent ones which have already far too much audio happening.
Peter
PS If not enough was happening, then maybe the counters could also output MIDI notes or triggers each time they moved on one place - useful percussion.  Plus the flippers could do the same, so there would be direct human playing as well.

  ----- Original Message ----- 
  From: mark verbos 
  To: Ken Stone ; synth diy 
  Sent: Tuesday, January 18, 2005 7:00 PM
  Subject: Re: [sdiy] Lego synth anyone?


  I was kidding Ken. :P

  Mark



  Ken Stone wrote:

Doing an ASR (analog shift register) this way would be more likely. For an
audio delay you would need multiple relays running in parallel, each fired
fractionally later than the last in order to simulate the much faster dual
string of the semiconductor variant. of course you would also need relays in
series with each in the parallel input.

instead of 2 x 512 as per a basic BBD,

you'd need to do something like 2 x 50 x 10 to achieve the same thing.

Ken

  I think that could be done. Anyone care to try? Harry?

mark



Roy J. Tellason wrote:

    On Sunday 16 January 2005 07:31 pm, mark verbos wrote:
 

      In his BBD based delay module, 
   

        Heh.  I at first mis-read "delay" as "relay",  and thought for a minute there 
that you were talking about a BBD using _relays_...!

:-0







 

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Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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