[sdiy] Music Easel ring mod analysis

[Grant Richter]

I have heard that Serge would listen to every single node in a  
circuit, just to see if any interesting noise was happening there.

The thing about that opto-ring mod is you could break out a bunch of  
circuit points for distortion and general weirdness.

Then if you start looping back internally, you'll start getting  
chaos... How about cascading two of them with partial feedback?

I bet if someone really messed with the basic circuit they could make  
a whole little noise box.

But I have to make modules and have no time for fun, pooh.

On Nov 22, 2008, at 2:11 PM, Aaron Lanterman wrote:

> On Nov 22, 2008, at 2:12 PM, Grant Richter wrote:
>
>> A few days fooling on the breadboard and some fast Audiohm  
>> optoisolators and you could come up with a FAR superior circuit.
>
> Oh, very true... but I'm doing this more out of historical  
> curiosity (particularly my Easel obsession), and also just to  
> understand what the giants I'm standing on the shoulders of have  
> done (need to figure out the state of the art before improving on  
> the art), not to create the perfect ring mod. After all, you could  
> forgo the optoisolators and just use an AD633 and be done - and I  
> suspect that's what Buchla would do if he were making a modern Easel.
>
> I do find myself wondering what's inside a 285e...
>
> - Aaron
>
>
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