Neon logic

[Bjørn Vermo]

On 27 May, 2005, at 07:25, Tom Jennings wrote:

> On Fri, 27 May 2005, Tony Duell wrote:
>
>>> 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!

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