Stumbled on this forum - where to start?

jmejia · Joined: Mar 12, 2009 Posts: 114 Location: portland

So I've been browsing around for a little bit.. but I'm totally missing some fundamental concepts about Lunetta's and where to begin. Can anyone suggest somewhere to start? A forum thread maybe - or a particular chip I should buy and breadboard? Or maybe just a really nice, simple, elegant circuit to try? I'd like to get my feet wet - but am a bit overwhelmed by the amount of circuits and ideas here! Thanks!

fredmerts · Joined: Jun 03, 2008 Posts: 7 Location: earth

This is a really good place to start:
http://milkcrate.com.au/_other/sea-moss/
This guy really helped me understand what's going on in Lunettaland, even though I am still learning.

DGTom · Posted: Mon Jul 27, 2009 7:08 pm Post subject:

another great place to start;

http://www.fluxmonkey.com/electronoize/

sizone · Posted: Mon Jul 27, 2009 8:15 pm Post subject:

First you're going to need oscillators, lots of them. Either inverters or Schmidt triggers should be you first chip investment .40106-easy and popular, but can be hard to find. 4069, easier to find, a little hard to work with. There's a Schmidt trigger chip with fewer nodes than the 40106, but I can't remember its part number off hand. Standard 555s, 556s and 7555s also make decent building blocks.
Considering the range of functions your oscillators need to provide (from
-s l o w l y- advancing the stage of a a shift register to driving dividers at rates high enough to be audible) you're going to want to build as many as you can in ranges from 1 tick every few seconds (or minutes) up to stuff in the inaudible 20mhz+ range.
Stock up on 4051 multiplexers. They tend to turn up in most "sequencer" type circuits. They're really useful for stepping between sources. Beyond that, just wire stuff together and remember that when our machine overlords finally claim their rightful place over humanity lunetta builders will be offered the privilage of being eaten first.
Logic simulation software -should- be the ideal way to sketch out lunetta circuits. I've yet to find any freeware that really fits the bill but I suspect it's out there somewhere.

RF · Posted: Mon Jul 27, 2009 8:42 pm Post subject:

Hi - welcome to the fun.
Twisted Evil

There is lots of Lunetta stuff here;
http://deathlehem.com/php/forums.html

Go ahead and ask questions - we'll answer what we can.

bruce

droffset · Posted: Tue Jul 28, 2009 4:24 am Post subject:

Welcome!

All of that is good advice. Have fun with it and you'll see opportunities for interesting applications pretty soon.

EDIT:

Oh yeah, try to see each IC as being a functional block. It has inputs and outputs. Think in terms of inputs and outputs. If you can understand that you can learn the basic functions of ICs in that 4000 family.

This helped me a LOT, there's a Java app that will pop up:
http://falstad.com/circuit/
Dig into the menus and you'll find some great visual examples of logic functions.

Here's another thread of advice for new Lunettites.
http://electro-music.com/forum/topic-33986.html
And
http://electro-music.com/forum/topic-34295.html

aerogramma · Posted: Tue Jul 28, 2009 4:32 am Post subject:

slacker · Posted: Tue Jul 28, 2009 5:09 am Post subject:

Yeah it started telling me I was banned yesterday, seems to be fine again now though.

RF · Posted: Tue Jul 28, 2009 5:20 am Post subject:

I think There were some spam issues - and a range of IP's were banned.
Rich has been working on getting it all fixed...

bruce

sizone · Posted: Tue Jul 28, 2009 3:25 pm Post subject:

Alas, my acct. is still banned. One too many Canuck jokes....

RF · Posted: Tue Jul 28, 2009 5:14 pm Post subject:

Yup - them Canadians are tender...

Send a PM to Rykhaard on this board - give him your IP addy and he'll do something about it.

jmejia · Joined: Mar 12, 2009 Posts: 114 Location: portland

Lots of great links and advice - thanks! I'm looking for fun and cheap and that seems to be the lunetta m.o.

gordonjay · Joined: May 27, 2009 Posts: 31 Location: asheville

my home IP address is banned, and now i'm at my mother in law's and i'm banned here too!

at first i thought it was cus i posted something stupid while drunk, but it looks like there are spammers in my midst.

droffset · Posted: Mon Aug 10, 2009 6:53 pm Post subject:

It's not you, I think there's something that needs to be tweaked with the ban settings over there. I'll try to get a hold of Rich and get him to look at it.

gordonjay · Joined: May 27, 2009 Posts: 31 Location: asheville

yeah that's unfortunate. that board has lots of great ideas on it. i loved lurking on it. Sad

slacker · Posted: Tue Aug 11, 2009 12:40 pm Post subject:

Looks like Rich has sorted out the problems, so hopefully everything will be fine now.

http://deathlehem.com/php/viewtopic.php?f=8&t=227

Rykhaard · Joined: Sep 02, 2007 Posts: 1290 Location: Canada

Yessum folks! It looks like it's all 'otay' now, since I restored the backup from May 21st. Surprised

(Major messages lost, but ..... )

The BB's been running fine for 2 days now with those who'd been 'banned' (apparently) logging in now, with no troubles. Smile

For those here who've been through it - major amounts of apologies for it! I've not a for sure clue what it were, but the Restore seems to have taken care of the problem, VERY thankfully! Surprised