Anyone remember the Sony professional walkman cassette?

They were, in truth, the bollocks. Mine died the death long ago but the archive survives. A beautiful machine, and just as handy as the H4.

And what about DAT? Never actually owned one, but I've used one from time to time with impressive results.

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Back to the H4 / H2 - on a practical note, I've taken to using high capacity rechargeable batteries which last a good deal longer than Duracells. When are they going to do a wind-up one I wonder?