From: Robin Hollands <R.Hollands@sheffield.ac.uk>
Subject: Re: HOME-BREW: can i use the 4070 to replace 4030?
Date: Wed, 06 Nov 1996 15:12:04 +0000
Message-ID: <3280AAC4.2990@shef.ac.uk>
Organization: Automatic Control & Systems Engineering, University of Sheffield 


William Smith wrote:
> 
> iam building the circuit described in 'The VR construction Kit'
> for connecting a pair of shutter glasses to a pc but cant locate
> the CD4030 chip. I have been told this is now called a 4070 is
> this right? if not where can i get a 4030?

 Unfortunately the circuit diagram that Joe G. used from the net was
incredibly obscure but Linda Jacobson has a much clearer version of
the same circuit in her book "Garage Virtual Reality" (p257). I also
couldn't find any CD4030 in my data books, but it does turn out from
the circuit diagram that the widely-available 4070B is a pin-for-pin
replacement, so you can even use the original PCB layouts.

Cheers,

Robin

Email: r.hollands@sheffield.ac.uk
WWW: http://www.shef.ac.uk/~vrmbg/staff/rjh/rjh.html
BOOK: http://www.shef.ac.uk/~vrmbg/vrhmhb/vrhmhb.html