14 Dec
2007
14 Dec
'07
6:53 p.m.
I thought of this, too. So far I haven't found an online source of
them (Google search terms: "glass delay line" OR "quartz delay line"
OR "ultrasonic delay line" TV PAL OR NTSC).
-Bobby
Fri Dec 14 19:10 Tony Duell wrote:
I wonder if you could use those glass delay lines that
were used in
PAL
colour TV receiver until fairly recently (and there must be plenty
still
around)? Alas they have a somewhat odd delay time (a little less than
64us -- one line period of the European TV signal), but I am sure you