10 Jun
2016
10 Jun
'16
9:16 p.m.
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...
-Ali
11 Jun
11 Jun
6:03 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.
3:16 p.m.
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. 
3:25 p.m.
I doubt there is that much gold in them to cover
purchase price and shipping. The gold used in these
is really thin.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Ali <cctalk at
ibm51xx.net>
Sent: Saturday, June 11, 2016 12:16:47 PM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Strange ICs on eBay
Thanks to everyone who replied. I had never seen those before. There seems
to be a bid on them already so hopefully it is someone who want the display
and not the "gold".
-Ali
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. 
12 Jun
12 Jun
3:08 a.m.
On 6/11/2016 4:03 AM, Peter Corlett wrote:
On Fri, Jun 10, 2016 at 09:16:37PM -0400, Ali Fahimi,
M.D. wrote:
Oddly, Jamco seems to have have found a bunch of stock of 7 segment
displays somewhere and is selling them.
Ben.
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.
8:04 p.m.
On 11 Jun 2016, at 11:16 am, Ali Fahimi, M.D.
<afahimi at fahimienterprises.com> 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...
-Ali
They are similar to the LED displays used on the Rockwell AIM-65
8:49 p.m.
They are apha-numeric LED displays. They seem to have
extra pins the my be decimal points. Nothing otherwise
unusual.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Chris Pye <pye at
mactec.com.au>
Sent: Sunday, June 12, 2016 5:04:26 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Strange ICs on eBay
On 11 Jun 2016, at 11:16 am, Ali Fahimi, M.D.
<afahimi at fahimienterprises.com> 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...
-Ali
They are similar to the LED displays used on the Rockwell AIM-65
2962
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6 comments
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abuse＠cabal.org.uk -
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