Re: Vortex schematics and old holtek chips

["L. Stafford" <r4c@winternet.com>]

Try Steve at Small Bear Electronics, http://www.smallbearelec.com for the 
Holtek chips

Lorren
Blackbox Music Electronics
http://www.blackboxmusicfx.com



At 05:51 PM 3/26/02 +0000, you wrote:


>HI Folks,
>                 Good to be back on this list after a long absence (what 
> *was* I
>thinking! ).
>I own a vortex and a while back I tried fitting in 256k DRAMS and made 
>some
>good guesses at what to put in U10... Good news is my vortex is still 
>working,
>bad news... no increased delay time :-( Maybe I guessed wrong on U10, 
>maybe
>I need to go find me a DSP hacker. Anyway I was going through the list 
>archives
>and came across the info that Kim has the vortex service manual and has 
>twice
>tried
>to get it scanned to no avail... any more news on that front?
>I'd happily volunteer but living in the UK probably complicates things 
>:-) 
>I do
>have broadband however so maybe we could do it this way:
>1) I paypal Kim some dosh to cover postage of a copy of the manual.
>2) Manual arrives, I scan it and clean things up a bit.
>3) I ftp the resulting files to some suitably receptive box.. or make them
>available
>     on my server for Kim to download and post on the delight site for 
>all to
>share.
>
>Sound good?
>
>On another line, does anyone know of a supplier of the (sadly obsolete) 
>holtek
>HT8955A chip? radioshack used to sell it, it's a digital delay that 
>really 
>just
>needs
>a dram chip and a couple of op-amps bolting on to it to go up to 800ms 
>and I
>  fancy stringing about 16 of them together with feedback paths 
>everywhere to
>make a nasty monster noisemaker thingy .... :-)
>
>Cheers,
>            Robin.
>
>
>
>
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