I believe a coaxial trombone air line is what you need. I have used them
for delay purposes while making eye pattern measurements.
I can't remember who makes them. I don't think that they are inexpensive.
... Rich Mellitz, NCR
On May 8, 1:42pm, John Lipsius wrote:
> Subject: continously variable delay line avail?
> I'm looking for a continuously variable, probably coax based,
> delay line that's hopefully accurate or can be calibrated.
> Need 0 to 9 ns. guaranteed, without loss of signal integrity.
> Has to have BW through 1.5 GHz as a unit. For delaying a digital
> TTL clock.
> I realize maybe there's two left in the world under some desk
> in the cobwebs, but it's worth a try. Help!
> Thanks very much,
>-- End of excerpt from John Lipsius