TitleColossus - Valves
PublisherThe Science Museum, London
Place of PublicationLondon
|Other number||#698||Verso pencil|
|Other number||1818/75||Verso pencil|
Dimensionsoverall: 9 1/4 in x 7 1/2 in
DescriptionBlack and white image 5 vacuum tubes (valves) and a socket with a ruller in the middle to show scale. Identification dataprinted on the image:
"THE VALVES USED IN COLOSSUS 1. The photograph below shows the four valves and the photo-electric cell which were most commonly used throughout Colossus. They are ( left to right) EF 36 - GTIC - 807 -L63 - Photo-cell 'RCA' 2. In the foreground is the surface mounting ocatal valveholder used extensively throughout the machine. " Verso : Copyright Enquiries to The Science Museum"