11 Jun
2016
11 Jun
'16
3:03 a.m.
On Fri, Jun 10, 2016 at 09:16:37PM -0400, Ali Fahimi, M.D. wrote:
Just wondering if anyone knows what these chips are
for/from/etc.
http://www.ebay.com/itm/152124208945
Interesting look to them. I would say EPROM but the magnifying window is weird...
Those look like "starburst" displays:
https://en.wikipedia.org/wiki/Sixteen-segment_display
The window is indeed a magnifying lens. I ass-u-me that LED technology was
still a bit naff back in the 1970s and it was more practical to optically
enlarge the segments than make a chip with physically larger segments. This
compromise produced an odd visual effect, which is likely why it's not done any
more.