27 Feb
2007
27 Feb
'07
5:18 p.m.
Hi cctalkers,
A while back there was a URL posted somewhere on this list about a
(1950s?) character generator which worked solely by mixing harmonics,
with X-Y output to connect to a display tube. It could only generate
the digits 0-9, but was a seriously impressive piece of kit
nonetheless.
I recently wanted to show this to a friend, and couldn't find it with
any amount of Googling.
If someone can remember this site, or has it bookmarked, I'd be
endlessly grateful for the URL.
Thanks,
Ed.
27 Feb
27 Feb
5:52 p.m.
On 2/27/07, listmailgoeshere at gmail.com <listmailgoeshere at gmail.com> wrote:
Hi cctalkers,
A while back there was a URL posted somewhere on this list about a
(1950s?) character generator which worked solely by mixing harmonics,
with X-Y output to connect to a display tube. It could only generate
the digits 0-9, but was a seriously impressive piece of kit
nonetheless.
Found this, but this is probably something different that what you
were looking for.
"X-Y alphanumeric character generator for oscilloscopes"
http://www.freepatentsonline.com/3866210.pdf
BTW, this this the scheme that the scope interface of the SYM-1 uses?
6:19 p.m.
On 27 Feb 2007 at 17:52, Glen Slick wrote:
Found this, but this is probably something different
that what you
were looking for.
I don't know if anything's online, but the old "double eyeball"
operator's console for the Control Data 6000 series used an RLC
network to generate the complete set of 63 displayable characters.
The display technology was vector with refresh provided by a PPU
(usually PP1) rewriting the entire contents of both screens
periodically.
Cheers,
Chuck
5:56 p.m.
On 2/27/07, listmailgoeshere at gmail.com <listmailgoeshere at gmail.com> wrote:
Hi cctalkers,
A while back there was a URL posted somewhere on this list about a
(1950s?) character generator which worked solely by mixing harmonics,
with X-Y output to connect to a display tube. It could only generate
the digits 0-9, but was a seriously impressive piece of kit
nonetheless.
Again probably not what you are looking for, but there is a modern day
scope clock kit.
"The scope clock displays the time on a small oscilloscope tube.
The numerals are formed from circles, arcs and lines"
http://www.cathodecorner.com/sc100.html
28 Feb
28 Feb
3:27 p.m.
A while back
there was a URL posted somewhere on this list about a
(1950s?) character generator which worked solely by mixing harmonics,
with X-Y output to connect to a display tube. It could only generate
the digits 0-9, but was a seriously impressive piece of kit
nonetheless.
Again probably not what you are looking for, but there is a modern day
scope clock kit.
"The scope clock displays the time on a small oscilloscope tube.
The numerals are formed from circles, arcs and lines"
http://www.cathodecorner.com/sc100.html
6507
days inactive
6507
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4 comments
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