The Pye Story website describes the history of Pye of Cambridge from a startup in 1896 to its takeover by Philips in the 1960s Pye Story (pye-story.org)

There is a permanent exhibition of Pye products at Cambridge Museum of Technology  Cambridge Museum of Technology

Currently there is also a temporary exhibition celebrating the first 10 years of the BBC and Pye Radios from 1922 to 1932 Radio Enters the Home — Cambridge Museum of Technology

We are always interested to know more if anyone knows anything else about the history of Pye and its achievements.