>The DDS generator will be an interesting instrumental for metal detector designs. Is possible to make a metal detector based on the ICL 8038 with selectable 3 types of waves?

I suppose you could, but for a single-frequency detector the triangle & square wave don't buy you anything. My thought with DDS, is that you can easily hop frequencies, or maybe even use a chirp mode, in combination with a wideband coil. Might work better than the current crop of "multifrequency" detectors, dunno.

- Carl