[Arran]

Pete;
  Yes, that is the one, if it were a North American radio from that era it would have been a superheterodyne, and had at least four tubes (lamps). It's still an interesting set, I would assume that by "regenerator" means that it is the same thing as what they would call a "regenerative" circuit over here, where they use a system of controlled positive feedback for amplification. Such circuits fell out of favor, at least in North America, by the mid 1920s, as if they were adjusted incorrectly they could oscillate and radiate RF out of the antenna, causing interfering squeals and howls out of any other radios that happened to be nearby. Another reason that they fell out of favor is that a manufacturer required an RCA patent license to build them, which were very hard to obtain, and expensive, but tubes (lamps) were relatively inexpensive, so most manufacturers started building receivers with tuned radio frequency (directly amplified) circuits instead, such as the neutrodyne circuit. Mike posted of his Philco model 86 which uses a TRF circuit
Regards
Arran