Plastic ready reckoner for determining the value o

Made:
1965-1980 in England

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© The Board of Trustees of the Science Museum

Plastic ready reckoner for determining the value of resistors from the painted colour bar code provided by the manufacturer. Supplied by Dublier Limited, London, 1965-1980.

Details

Category:
Mathematics
Object Number:
2002-535
Materials:
complete, metal and plastic
type:
ready reckoner (electrical engineering)
credit:
Mrs Adrienne Finch