Elektor Oscillographics

bugbrand · Posted: Tue Jan 30, 2007 2:39 am Post subject:

I've put +/-5v regulators in now (kludge) and taken out all those extra bits and its working good! (still not used the Z though).

Nice to feed the X channel output into the Y mod input and vice versa for feedback goodness oh yes.

I could watch these all day but really have a lot of other work to do...

blue hell · Posted: Tue Jan 30, 2007 9:53 am Post subject:

Photon · Posted: Fri May 11, 2007 10:43 am Post subject:

I found this recently and thought it made sense to add it here. Another oscilliscope graphic generator project:

http://www.crowncity.net/ratcave/Electro/ScopeArt/ScopeArt.html

v-un-v · Posted: Fri May 11, 2007 12:12 pm Post subject:

doctorvague · Posted: Fri May 11, 2007 12:30 pm Post subject:

Great video!!
Thanks for the project. You're right that is a nice PCB layout.
I've got a cheap digital scope which is cool to save waveforms and stuff but seems like an analog scope is the right tool for the job with this, yes-no?

Phil

v-un-v · Posted: Fri May 11, 2007 12:35 pm Post subject:

both should work fine Very Happy

Photon · Posted: Fri May 11, 2007 12:36 pm Post subject:

sorry! I thought I was being helpful. Its been a while since I had read this post...I guess I should have looked closer.
oh well. Laughing

p.

v-un-v · Posted: Fri May 11, 2007 12:40 pm Post subject:

no problem Laughing

We're only human after all- as the old cliche goes Very Happy

Anyway, you are excused for having Linus as your avatar Cool

(it is Linus isn't it? I used to love Charlie Brown, until the Simpsons came along anyway Very Happy

)

Photon · Posted: Fri May 11, 2007 1:08 pm Post subject:

Yup, good ol' Linus Very Happy

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salamanderanagram · Joined: Apr 08, 2007 Posts: 20 Location: VT

none of the links in this thread work!!
i would appreciate it if someone could repost them...
thanks!

TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

Reposted as requested.

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TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

and the last bit reposted.

I can add that the design works well, and that I subsituted a 79L05 for the 741-plus-transistor negative regulator. I think Elektor only used this because 79L05's weren't made then, or were at least very rare.

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State Machine · Posted: Sun Dec 16, 2007 8:58 am Post subject:

TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

v-un-v · Posted: Sun Dec 16, 2007 12:58 pm Post subject:

Hey Prof- thanks for the repost Very Happy

I completely overlooked the fact that this project got lost in that server crash too Sad

AND even more thanks for that 'must have' too!

State Machine · Posted: Mon Dec 17, 2007 10:18 am Post subject:

v-un-v · Posted: Mon Dec 17, 2007 10:22 am Post subject:

Bill, Lochmaster is the CAD stripboard software that Unkle K did the original Klee and Soundlab layouts in.

v-un-v · Posted: Mon Dec 17, 2007 10:23 am Post subject:

bugbrand · Posted: Fri Sep 16, 2011 3:44 am Post subject:

Just to drag this up from the void... As I finally got around to making up a test for another of these projects - the 'Scope Art / Oscilloscope Graphic Artist' from Practical Electronics Nov.1975

Here's a rough first demo play with drone-tones generated by the circuit
http://www.youtube.com/watch?v=Ypn9JJXSl7w

There's certainly scope for further development on it - I need to try out different sync'ing options, add fine-tune controls and perhaps skew (as the oscs are very much like the 'standard' LFO circuits)

TheAncientOne · Joined: Dec 26, 2006 Posts: 144 Location: United Kingdom

Very nice work Tom!

I know I posted this elsewhere, but if you go to http://www.mitchwaite.com/ and follow the 'personal' link, his book 'Projects in sight, sound and sensation' is available for download.

IF you can afford a bunch of 8038's, there is a monster oscilloscope graphics machine deign there, and lots more, including a Kirlian Camera unit.

Mitchell Waite was founder of The Waite Group, and one of the great writers on computing. The story about Steve Jobs turning up in a VW camper van, to ask him to do the Apple ][ book is a classic. Also on the site.

bugbrand · Posted: Fri Sep 16, 2011 5:41 am Post subject:

Ok - great - thanks for the info & link.

Yes, I've looked through the Projects for Sight & Sound PDF before and actually have done some experiments with just a part of the circuitry - the phase shifters and ring-mods (using AD633).

I feel silly for not having realised the two projects were by the same guy.

Nice!

macumbista · Posted: Sun Sep 18, 2011 2:18 pm Post subject:

bugbrand · Posted: Mon Sep 19, 2011 1:26 am Post subject:

Heya Derek,

I've been occasionally looking around such areas - at the moment I've got the beginnings of a vid-synth system from LZX in the workshop (but it is going off on tour with someone very soon unfortunately...)

A very interesting area is vector re-scanning and that's the initial purpose of the system I've been helping to put together. I've had some fun testing, but unfortunately the documentary pics/vids I've attempted have all looked crap.

This is how it is meant to look (if filmed well)::
http://www.youtube.com/watch?v=DmUSb1ptCNg
http://www.youtube.com/watch?v=-uA75dw9BJQ

[by the way - back over in Berlin early next month - hopefully we can hook up this time as I won't be going off to any spacey festivals!]

macumbista · Posted: Mon Sep 19, 2011 1:45 am Post subject: