[sdiy] Using analog for physical modeling

[dustin Sedlacek]

I have. Even obsessed with creating physical modeling type of sounds using analog feedback. 

Tubes
Resonant chambers etc 

Has anyone does this with much success? I find that I need more and more. VCAs and envelope generators than I have. 

Dustin Sedlacek
901-828-6801


On Sep 17, 2011, at 8:33 PM, aankrom <aankrom at bluemarble.net> wrote:

> So I have an AD515 - the original, not the monolithic redo. I was just wondering if there was anything synth-diy that this would be better suited than anything that I could get toay. The spec sheet says that with a +/-5V supply the offset cuurent (or bias, I forget) was in the femto-amp range. It used to be in a UV-vis spectrum detector for an HPLC unit (even had a deuterium arc-lamp). It was the amp for the detector. This unit also yielded up some LF398H's and LM308AN's. I know that 308's are pretty obsolete, but the 'A' suffix makes them a little better and they do make a decent ProCo Rat clone (my Peavey Hotfoot sounds awesome with an LM308AH...). The LF398's have obvious uses even now. I was glad to have some fall into my lap. I also have a number of OP07's of recent manufacture. Are they really better that the originals? Oh and the LM301 shows up in so many classic synth circuits, is there any reason for not substituting them? I have a lot of those too. I seem to recall a single IC 24dB LPF designed by Juergen Haible that he said works only with LM301's - I'm guessing because of a feedforward design?
> 
> I could see using the AD515 in a S/H application maybe.
> 
> AA
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy