27 May
2005
27 May
'05
12:19 a.m.
On 27 May, 2005, at 07:25, Tom Jennings wrote:
On Fri, 27 May 2005, Tony Duell wrote:
One might even keep down the part count by coating the outside of the
tubes with photoresistor or even selenium...
Photodiodes are rather too modern.
--
-bv
> Reading would actually be the easy part- drop
a phototransistor in
> (optical)
> line with the NE - pricy but doesn't affect the stored data.
But not practical -- "easy" in a memory array is really code for
low parts count/high reliability.
But you're right, it would solve the read problem and also make it
a dual-port memory!