[sdiy] [OT] oscilloscope fun

Tom Wiltshire tom at electricdruid.net
Tue May 24 19:06:02 CEST 2016


The VCDO/Waverider looks really good on an XY scope screen, and the bit crushing is partly why:

https://www.youtube.com/watch?v=vjRhsuBtkKY


On 24 May 2016, at 16:48, Tim Ressel <timr at circuitabbey.com> wrote:

> Many dig scopes do have x/y. But when I tried it the sampling ruined the effect.
> 
> --tr
> 
> On 5/24/2016 8:41 AM, Jay Schwichtenberg wrote:
>> I work a lot with Tek scopes and the digital series DPO, MSO and MDO 3K and 4K scopes have X/Y.
>>  
>> And speaking of Tek scopes there are these:
>>  
>> (scroll down towards the bottom)
>> http://audiokarma.org/forums/index.php?threads/calling-all-the-coolest-vintage-logos.685710/
>>  
>> and the Tek wizard:
>> http://www.mobiletekla.com/funstuff.html
>>  
>>  
>> From: Synth-diy [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Tim Ressel
>> Sent: Monday, May 23, 2016 1:20 PM
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: Re: [sdiy] [OT] oscilloscope fun
>>  
>> I built one of those. They are quite fun. Be aware it only works with analog scopes. You can probably patch one up on your modular synth.
>> 
>> --TimR
>> 
>>  
>> On 5/23/2016 12:26 PM, KA4HJH wrote:
>>  
>> On May 21, 2016, at 8:14 PM, henry birdseye <henry.birdseye at gmail.com> wrote:
>>  
>> Dorking around making Lissajouses today.
>>  
>> https://vimeo.com/167580411
>>  
>> Here's a cool device that creates fascinating patterns on an oscilloscope:
>>  
>> http://www.astarcloseup.com
>>  
>>  
>> I buit one some time ago and it's fascinating to play with. It would be an interesting gadget to have at a synth meet or a gig without requiring the use of any of your modules. I recreated the original magazine article and saved it as a pdf so all the info is there, including the PCB layout (single sided). 
>>  
>> It's a fairly simple circuit and would be inexpensive to build if you can make your own PCB. The only parts you may have finding are the 4136 and the FETs.
>>  
>>  
>> BTW, I'm still not exactly how the phase shift works on OSC C. If anyone can explain it to me I'll update the blog post and the pdf.
>>  
>>  
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>  
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>>  
>> 
>> 
>> -- 
>> --Tim Ressel
>> Circuit Abbey
>> timr at circuitabbey.com
>> 
>> 
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>> 
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> 
> -- 
> --Tim Ressel
> Circuit Abbey
> 
> timr at circuitabbey.com
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