[sdiy] BBD help

[Shokwave]

----- Original Message ----- 
From: "Shokwave" <shokwave at nb.aibn.com>

> I found some 10 tap delay lines that went up to 500 and 1000ns, but they
are
> TTL, and so I assume are not for linear use. If anyone finds a similar
beast
> that can run in linear mode, let us know. 1000ns is probably too short to
be
> useful; that's 1 ms...hmmm. I think you could make a cool filter with
that,
> if nothing else.

...and immediately I find:
http://www.custompowersystem.com/DelayLines/product2.htm

Check it out: 20 taps, 2000ns max delay! I wonder what these puppies go for?
The distortion rating is high, but it still might make a cool filter. Bet it
costs, though. Hell, isn't a 2ms line equivalent to a 90 tap FIR at 44kHz in
dsp land? Even allowing for the difference in distortion and having 20 taps
on the IC, it seems to me that could be a killer filter. Of course, I'll
probably find that there's no comparison, but it's fun to think about.

-Darren