ETI 4600

[Paul Perry]

At 03:06 PM 22/05/98 +1000, Edward Leckie wrote:
>
>I contemplated building this beast a couple of years ago. I've even got the
>original ETI magazines that spans about 3 years from 1973-1975. The unfortunate
>thing is that it requires +/- 7V, +/-14V  and 5V power rails and all the PCBs
>were quite large.
....the PSU will be the easy part....
>There's a place called RTS in Hurstville that will make the PCBs that are
in the
>articles. The VCF uses a switch cap method for voltage control, in case you're
>wondering. The author also states that his filter design is patented! Doesn't a
>patent only last for ~20 years?
I think 17 years in Australia.. it's open go on this one now.
>
>The best thing was the groovy wooden case.
which is the most awkward thing imanigable to box up/transport..
Rowena had to hire a car to get it from Melbourne to Sydney!

and despite her humorous comments, the one I sold her DID have the patchboard..
which I think is worth a little more than I sold the whaole thing for..
but, she being a qualified electronics engineer, will be able to do more
with it than
I ever could! It's found a nice home, which it deserved, after having the
plastic
eaten off the electros during a Ballarat mouse plague. (you could see the
little 
teeth scrapes on the aluminium.. nice!)

paul perry melbourne australia
>
>Ed.
>
>
>____________________Reply Separator____________________
>Subject:    ETI 4600
>Author: beni ben <bmwoenig at merlin.net.au>
>Date:       21/06/98 13:50
>
>Has anyone built this machine? Would it be a good first "major project"
>to undertake?
>It appears to have a lot of non-standard features, like all CV and Audio
>inout/outputs are between 0V and 5V, not -5V and +5V on some other
>machines.
>
>Any sugestions?
>
>L8r
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><bUd>
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