[time-freq] TADD-3

[Christopher Hoover]

> I'll add those features to the next rev.  My only concern about adding
the
> LEDs is finding enough gates to drive them.  I'm pretty sure I could
put
> one for each input channel without adding a chip, but adding six to
> follow each output would be a bit more challenging (though certainly
doable).

One for each channel is exactly what I was thinking.  That's all that's
needed, imo.

-ch