Follow the ebay auctions for SW77's and see what the final bids are. I
know I've seen many go for between $300 and $400 dollars, depending on
the condition. Also, if you have the older SW77 that has (I believe)
nine antenna elements, it won't be as valuable as the newer version
that has (as I recall) eleven elements. It's a tragedy that this
receiver is no longer available through Sony. Very sophisticated for a
portable radio.

Steve