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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
I Propose a Challenge!
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Should this competition be an annual event?
Yes
87%
 87%  [ 7 ]
No
12%
 12%  [ 1 ]
Total Votes : 8

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Inventor
Stream Operator


Joined: Oct 13, 2007
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PostPosted: Fri Sep 21, 2012 11:58 am    Post subject: Reply with quote  Mark this post and the followings unread

eep! thanks! I forgot about the no-competition directive from mosc! No vote, no vote, no vote!

Les

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elmegil



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PostPosted: Fri Sep 21, 2012 12:31 pm    Post subject: Reply with quote  Mark this post and the followings unread

Laughing Laughing Laughing

Didn't mean it to be THAT serious, Les! Very Happy
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Blue Hell
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PostPosted: Fri Sep 21, 2012 12:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

It would still be nice to have an overview of what people did Wink

Or an overhear I guess Question

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Blue Hell
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PostPosted: Fri Sep 21, 2012 12:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hmm .. maybe a challenge broadcast? Les?
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Inventor
Stream Operator


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PostPosted: Fri Sep 21, 2012 12:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

Jan, That's a great idea! i'll do a show on the challenge results!

Les

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Blue Hell
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PostPosted: Fri Sep 21, 2012 1:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

Cool
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brock



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PostPosted: Fri Sep 21, 2012 3:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

D'oh!...I forgot about the no competition directive too.
An overview is a good idea, and the broadcast; give some recognition to the guys who completed stuff.
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Blue Hell
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PostPosted: Fri Sep 21, 2012 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

brock wrote:
give some recognition to the guys who completed stuff.


Oh Les knows how to handle that properly Exclamation

He has a regular show again BTW .. or party! rather Laughing every friday ... see http://www.electro-music.com/~janpunter/view_schedule.php for the radio schedule.

Hearing forward here Cool

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trav



Joined: Sep 11, 2012
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PostPosted: Fri Sep 21, 2012 6:12 pm    Post subject: Reply with quote  Mark this post and the followings unread

hey Les, you got the chips! can you flip for me?
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Inventor
Stream Operator


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PostPosted: Sat Sep 22, 2012 1:27 am    Post subject: Reply with quote  Mark this post and the followings unread

Well, I flipped for ya trav and you got HT, which is Bag C. Contents to follow.

Les

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Inventor
Stream Operator


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PostPosted: Sat Sep 22, 2012 1:44 am    Post subject: Reply with quote  Mark this post and the followings unread

Here you go trav:

Bag C - trav
4001 x 5 quad 2-input NOR
4011 x 1 quad 2-input NAND
4013 x 4 dual DFF with set/reset capability
4023 x 4 trile 3-input NAND
4051 x 1 8 channel analog multiplexer/demultipolexer
4082 x 2 dual 4-input AND
4093 x 3 quad 2input NAND Schmitt Trigger
4518 x 5 dual BCD up counter

So you got basically just a bag of logic with some counters, a mux, and two some DFF's. It's just like my bag. Pretty bleak if you ask me but with all that abundance of logic you can probably build whatever you want!

Les

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Psyingo



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PostPosted: Sat Sep 22, 2012 6:41 am    Post subject: Reply with quote  Mark this post and the followings unread

That's a lot of inverting logic! Fun stuff can be done. As i am a lover of linear cmos, this would be great for that stuff. My bag last year wasn't so lucky, i had to do without lots of inverting logic, instead i got a bunch of almost useless chips. 4019 anyone? /pukes/
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Inventor
Stream Operator


Joined: Oct 13, 2007
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PostPosted: Sat Sep 22, 2012 1:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

That's a good point, I think I'll do some linear cmos this time also!

Les

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elmegil



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PostPosted: Sat Sep 22, 2012 6:10 pm    Post subject: Reply with quote  Mark this post and the followings unread

I have two different bags headed my way, I will flip a coin once they get here (hopefully sometime next week).
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Inventor
Stream Operator


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PostPosted: Sun Sep 23, 2012 7:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Ah, great, Elmegil, cause I think if Dr. Offset plays we will have need of one more virtual bag!

Les

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trav



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PostPosted: Sun Sep 23, 2012 10:52 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks, Les! lots of logic indeed, and I know what every one of those chips does! which is a good start. Time to start brainstorming
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attdestroyers



Joined: Mar 29, 2012
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PostPosted: Mon Sep 24, 2012 10:51 am    Post subject: Reply with quote  Mark this post and the followings unread

i'm in... Just ordered my grab bag today. Could be cool.
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Inventor
Stream Operator


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PostPosted: Thu Sep 27, 2012 4:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm making slow sporadic progress on my challenge build. Shown in the photo below is part of the design, a stand-alone breadboard with dual SRFF oscillators, ringmod of those two, and 8 position spatializer. That alone should sound weird, but I'm also planning to build a hybrid digital / analog Karplus strong loop with piggyback chips for the summing amp. Will be fun to do a piggyback!

Les


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elmegil



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PostPosted: Thu Sep 27, 2012 4:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

I's afeared!

I have no idea what some of those things are Les, but I'm looking them up now Smile.
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Stream Operator


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PostPosted: Thu Sep 27, 2012 5:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

I guess I should start a project thread for discussion of such details.

Les

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elmegil



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PostPosted: Thu Sep 27, 2012 6:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

Funny thing is, googling them turns up your own previous blog posts about them Very Happy

Pretty clearly explained, I think. Thanks!
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PostPosted: Thu Sep 27, 2012 6:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

I guess that's because I wrote about those discoveries, be they novel or not, and named them so. Interesting...

Les

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elmegil



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PostPosted: Thu Sep 27, 2012 7:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

So one of my bags has shown up, and I expect the other shortly....going to wait to list contents until I have them both...

But the question arises...Obviously the only chips are to be the ones in the bag, but are there any limits on other types of components?

I have a rotary encoder which I thought might be interesting to mess with (quadrature and all that) and some vactrols from the EG blowout as well....

Any other limits?
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jcintheus



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PostPosted: Thu Sep 27, 2012 7:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

Limits? I'd suggest... I can't think of any suggestions. But, I do
have a question.

I just ran into an electronics goldmine of my own. Today I bought a case full
of 7400 type logic for pennies on the chip.

Would anyone be upset if I were to submit a ttl project to this "competition"?

I can't make any promises, but I'd like to try.
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Psyingo



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PostPosted: Thu Sep 27, 2012 9:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

re: limits. id say adding transistors would be a no-no since you could start building logic with those. diodes are okay. but transistors/opamps/other logic shouldnt be allowed...



re:7400 as long as it were 25 random (not chosen by you) ics then fine. the point is to give yourself limitations and get creative with trying to make something. if its just a 25 ics from a well sorted list of logic good for lunettas then im not sure it should be allowed. it needs to be truly random! its no fun unless you get some stupid ic's.
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