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