rectifying valve
21Geoffrey Dummer — IntroductionGeoffrey William Arnold Dummer, MBE (1945), C.Eng., IEE Premium Award, FIEEE, MIEE, USA Medal of Freedom with Bronze Palm (February 25, 1909 ndash; September 16, 2002) is a British electronics author and consultant who is credited as… …
22BR standard class 5 73050 — British Railways standard class 5 No. 73050 is a preserved British steam locomotive. Unnamed in service, it has been named City of Peterborough; it is owned by Peterborough City Council and operated by the Nene Valley Railway on a 99 year lease.… …
23BR Standard Class 5 73050 — The preserved 73050, as seen in 2007 British Railways Standard Class 5 No. 73050 is a preserved British steam locomotive. Unnamed in service, it has been named City of Peterborough; it is owned by Peterborough City Council and operated by the… …
24Mercury KG-7Q Super 10 Hurricane — is an outboard motor built by Kiekhaefer Mercury during the years of 1950 through 1952. 1951 KG 7Q Contents 1 …
25Fleming , Sir John Ambrose — (1849–1945) British physicist and electrical engineer Fleming, who was born at Lancaster, studied for a short time at University College, London, but left before graduating. However, he continued his work for a science degree in his leisure hours …
