There's an NC183D on ebay, starting at $9.99. Only problems a the normal
scratches, rust and cabinet dents; the phasing control is snapped off (as in
the shaft was snapped off at the chassis level), and there is a replacement
power xfrmr "about halfway" installed, whatever that might mean.... Other than
those little inconsistencies, it appears to be a "mint" set......
rgds...
Mark S.