--NextPart_Webmail_9m3u9jl4l_29846_1169152393_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Nowadays all my analog computation is done in the pursuit of making electronic music. After all, much of the same circuitry that goes into analog computation is also used in the waveform generators of analog music synthesizers. Apropos of which, I guess I should check out that AD538 and see if it might be useful in my next synthesizer project... -------------- Original message -------------- From: Dave McGuire > On Jan 18, 2007, at 1:20 PM, William Wilkinson wrote: > > Looking at the schematic from Vintage Radio > > (http://www.vintage-radio.info/heathkit/index.htm), you could probably > > build an equivalent from a handful of solid-state op amps and a few > > regulators--though I doubt that it would be quite as impressive as the > > original. > > > > One thing, though. You'd still need all that real estate for the > > knobs, > > jacks, and meter. > > I've often thought of building a digitally-interfaced analog > computer, primarily as an exercise/fun project. Picture a > traditionally-designed analog computer, but made with modern op-amps > and other components, but with digital pots instead of "real" ones, > and D/A and A/D converters for inputs and outputs. > > Analog Devices has a fantastic chip that I'd like to stick in the > middle of it all, the AD538 Real-Time Analog Computational Unit. > It's a very complex analog chip that can perform analog > multiplication, division, and exponentiation. I have a few of them > here and have been itching to put some voltages through them. > > Oh yes, I don't recall if I've ever actually posted anything here > before...I subscribed a month or three ago (things are crazy as I've > just moved house); I'm a vintage computing enthusiast...I cut my > teeth on the Z80 and PDP-11. I subscribed here because I have an H-8 > and was looking for kindred spirits. So, hello all. :-) > > -Dave > > -- > Dave McGuire > Port Charlotte, FL > > > -- > Delivered by the SEBHC Mailing List > If you would like to unsubscribe, please send the word "unsubscribe" > in the **body** of a message to sebhc-request@sebhc.org. --NextPart_Webmail_9m3u9jl4l_29846_1169152393_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Nowadays all my analog computation is done in the pursuit of making electronic music.  After all, much of the same circuitry that goes into analog computation is also used in the waveform generators of analog music synthesizers.
 
Apropos of which, I guess I should check out that AD538 and see if it might be useful in my next synthesizer project...
 
-------------- Original message --------------
From: Dave McGuire <mcguire@neurotica.com>

> On Jan 18, 2007, at 1:20 PM, William Wilkinson wrote:
> > Looking at the schematic from Vintage Radio
> > (http://www.vintage-radio.info/heathkit/index.htm), you could probably
> > build an equivalent from a handful of solid-state op amps and a few
> > regulators--though I doubt that it would be quite as impressive as the
> > original.
> >
> > One thing, though. You'd still need all that real estate for the
> > knobs,
> > jacks, and meter.
>
> I've often thought of building a digitally-interfaced analog
> computer, primarily as an exercise/fun project. Picture a
> traditionally-designed analog computer, but made with modern op-amps
> and other components, but wi th digital pots instead of "real" ones,
> and D/A and A/D converters for inputs and outputs.
>
> Analog Devices has a fantastic chip that I'd like to stick in the
> middle of it all, the AD538 Real-Time Analog Computational Unit.
> It's a very complex analog chip that can perform analog
> multiplication, division, and exponentiation. I have a few of them
> here and have been itching to put some voltages through them.
>
> Oh yes, I don't recall if I've ever actually posted anything here
> before...I subscribed a month or three ago (things are crazy as I've
> just moved house); I'm a vintage computing enthusiast...I cut my
> teeth on the Z80 and PDP-11. I subscribed here because I have an H-8
> and was looking for kindred spirits. So, hello all. :-)
>
> -Dave
>
> --
> Dave McGuire
> Port Charlotte, FL
>
>
> --
> Deliver ed by the SEBHC Mailing List
> If you would like to unsubscribe, please send the word "unsubscribe"
> in the **body** of a message to sebhc-request@sebhc.org.
--NextPart_Webmail_9m3u9jl4l_29846_1169152393_0-- -- Delivered by the SEBHC Mailing List If you would like to unsubscribe, please send the word "unsubscribe" in the **body** of a message to sebhc-request@sebhc.org.