DescriptionWilliamson home constructed amplifier, c 1949. (9663806448).jpg
A DIY tube amplifier from the collection of Science Museum (London). The original description said it's a Williamson amplifier, but the front end tube complement is different from a typical Williamson.
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Author
Science Museum
Copyright holder
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Source
RADC100102
Online copyright statement
www.nmsi.ac.uk/piclib/
Short title
Williamson home constructed amplifier, c 1949.
Image title
Amplifiers are used in radios to boost the strength of the incoming signal. Built to a design proposed by D T N Williamson in a magazine called‘Wireless World’ in 1947, this amplifier represented a major step towards domestic high-fidelity sound reproduction. It used two valves to drive the loudspeaker, one pushing, the other pulling, an arrangement similar to that still used in modern amplifiers. Like most amplifiers of the time, it was constructed at home from components purchased separately.