[sdiy] Digital echo chip

[Scott Bernardi]

I came across the PT2935 (Princeton Technology) digital echo IC at
Jameco (www.jameco.com) for $3.95.  The delay can be continuously
variable with a resistor. You can supposedly get up to 800msec of delay
with an external 256k DRAM chip in extended delay mode. There was a very
minimal datasheet on the Jameco page. I got to the manufacturer's
website yesterday but today it seems to be down (www.princeton.com.tw).
Anybody have any experience with this chip?  It looks pretty
interesting, and it's cheap enough.

--
Scott Bernardi
sbernardi at attbi.com