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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Inventor's Challenge Project Thread
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Thu Sep 27, 2012 5:01 pm    Post subject: Inventor's Challenge Project Thread
Subject description: 2nd Annual Lunetta Challenge
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This thread is for discussion of details related to my challenge project. I'll post my progress here and we can discuss it in this thread.

[edit] here are the chips in my bag:

Bag A
4001 x 4 quad 2-input NOR
4011 x 2 quad 2-input NAND
4013 x 6 dual DFF with set/reset capability
4023 x 2 tripple 3-input NAND
4027 x 1 dual J-K Master-Slave FF
4051 x 2 8-channel analog multiplexer/demultiplexer
4068 x 1 8-input NAND
4082 x 2 dual 4-input AND
4093 x 3 quad 2-input NAND
4518 x 2 dual BCD up counter


Les

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Last edited by Inventor on Fri Sep 28, 2012 8:02 am; edited 1 time in total
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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Thu Sep 27, 2012 10:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Here's a photo of my entry thus far. It has a pair of SRF oscillators going into a ringmod and those three outputs into an 8 position spatializer. Need to add an emSynth stereo out jack to complete this sub circuit.

Les


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RingMad



Joined: Jan 15, 2011
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PostPosted: Fri Sep 28, 2012 4:39 am    Post subject: Reply with quote  Mark this post and the followings unread

8 position spatializer?! How are you going to drive 8 speakers?

James.
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JingleJoe



Joined: Nov 10, 2011
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PostPosted: Fri Sep 28, 2012 7:18 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm outta money and outta time, but I'd like to try and participate in this eventually.
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Green Dungeon Alchemist Laboratories
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Inventor
Stream Operator


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Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Fri Sep 28, 2012 7:43 am    Post subject: Reply with quote  Mark this post and the followings unread

RingMad wrote:
8 position spatializer?! How are you going to drive 8 speakers?

James.


James, by 8-positions i meant there are 8 locations in space from which the music can appear to originate. The previous spatializer was a 4-position thingie.

Les

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Stream Operator


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PostPosted: Fri Sep 28, 2012 7:46 am    Post subject: Reply with quote  Mark this post and the followings unread

JingleJoe wrote:
I'm outta money and outta time, but I'd like to try and participate in this eventually.


Joe, I know you're tight. Remember Mother Teresa said that poverty is a blessing. Why that is I have no idea, but that's what she said. Anyway, if I mailed you one of my extra bags of chips would that make it possible for you to participate?

Les

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JingleJoe



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PostPosted: Fri Sep 28, 2012 7:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Of course! That would be the greatest help however I'm currently in the process of moving house, so there will be a delay before which it can be sent to a house in which I will be living Laughing
(P.S. In america it might mean something different, like poor, but here in England tight with regard to money means that one is reluctant to spend the money which one has. I would spend some money on this if I didnt have other pressing purchases to make, like stuff for the new house and sheet metal for my synth, these are just greater priorities for me right now and they will take up all of the £30 I have remaining to my name Rolling Eyes so I hope you aren't suggesting I'm a miser Surprised Laughing)

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Green Dungeon Alchemist Laboratories
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Inventor
Stream Operator


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Audio files: 258

PostPosted: Fri Sep 28, 2012 8:00 am    Post subject: Reply with quote  Mark this post and the followings unread

JingleJoe wrote:
so I hope you aren't suggesting I'm a miser Surprised Laughing)


nah, in America tight means you live on a budget, usually with more month than money at the end of each month! I'm tight too, for sure. Interestingly I stumbled across a fellow who does financial planning and tasks. He will help me immensely with finances! Looking forward to working with him.

Les

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RingMad



Joined: Jan 15, 2011
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PostPosted: Fri Sep 28, 2012 9:26 am    Post subject: Reply with quote  Mark this post and the followings unread

Inventor wrote:
by 8-positions i meant there are 8 locations in space from which the music can appear to originate. The previous spatializer was a 4-position thingie.


Yes, I figured I had misunderstood... I have a crazy project on the backburner and have been thinking of these things... i.e. I will be using a 4067 multiplexor to send sound to 1 of 16 speakers, and I also figured out how to do 8-position (but won't use because it would be overkill for the project). Anyway, I don't want to tangentialize in your thread... I'm still missing a piece of the puzzle, and I will no doubt post a thread about it once it's more advanced.

James.
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Inventor
Stream Operator


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PostPosted: Fri Sep 28, 2012 9:47 am    Post subject: Reply with quote  Mark this post and the followings unread

Keep on Truckin' James!

Les

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Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Fri Sep 28, 2012 6:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

I was thinking out loud in chat with the folks there and realized that I could make a hybrid digital / analog KS loop that might make interesting sounds. It would use the 12 DFFs that I have as the delay line, an RC low pass circuit for the filter, and a piggyback NOR/NAND pair for the inverting summing amp. Might sound pretty good, and would certainly be worth trying out.

I get the parts on Monday for doing this. Looking forward to it.

Les

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