The Doric was my first 'decent' portable keyboard. I once set up poolside in the sun and the instrument went 'nutz'. When it cooled down fortunately, it revert to normal. I a/b'd it with my friends Conti and it competed favorably. Amazing how far the technology has come in 50 years.
I've got the option of an Ekosonic, which is a rebadged Doric, but have no idea whether it works. I like the sound of these vintage organs - I'm from a portable harmonium/reed organ background.