back to the AGC, was Re: TTL 7400's Available

[Tony Duell]

> I don't see why.  I've seen early 1970s guitar amplifiers that use a 
> large EL strip for the control panel backlight.  It's not a huge stretch 
> to imagine that NASA would make a display for a spaceship computer out 
> of them a few years previously.

At least one Philips valved radio (1960's, I think) used an EL panel as 
the base for the tuning dial (rather than the more conventional filament 
lamps to illuminate said dial). And I seem to remember reading about EL 
panels in photogrpahic books of the late 1950s (they were proposed as a 
darkroom safelight).

Of course all these applications ued plain panels, not divided up into 
segments. 

-tony