tube CD player (was Re: sizes (was Re: vacuum tube computer))

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Mon Feb 1 18:41:33 1999

On Feb 1, 23:30, Eric Smith wrote:

> Of course. It would use a HeNe laser, just like the early laser video
> disc players.
>
> The part I haven't figured out is the photodetector. Even those early LD
> players used a phototransistor for the detector.

Would a selenium cell be fast enough? A CdS photresistor probably wouldn't
be, I think.

-- 
Pete						Peter Turnbull
						Dept. of Computer Science
						University of York

Received on Mon Feb 01 1999 - 18:41:33 GMT