Circuit diagrams and service manuals
Radio Bygones indexes Back issues (PDF) of Radio Bygones are available to purchase at www.radiophile.co.uk
Universal Coil Winding – Radio and Electrical Review – March 1961
Dial image files – see under Galleries
VALVE DATA
(see also links to online valve databases on the Links page)
Raytheon tube short form data guide 1957
TubeSubstitutionGuidebook-1960
Valve numbering and equivalents – Radio Bygones
Valve CV register – a list of CV equivalents
New Zealand Vintage Radio Society 