Roberts RC818 Sangean ATS818 ACS - Antenna Adapter
 

I never knew there was an antenna adapter for this RX. My Roberts RC818
(Sangean ATS818 ACS) (bought second-hand) never came with an antenna
adapter. And I don't think there's anything missing in the box.

I suppose I might be able to source one from somewhere if I wanted one. Ebay
I suspect. :c)