General:

Antique Radio Grill Cloth
http://www.grillecloth.com/

Collectable Radio & Electronic Equipment
http://www.vk2bv.org/radio/

The Philco Repair Bench
http://www.philcorepairbench.com/

Vintage Radio - Brad Leet, NSW
http://vintage-radio.com.au/

Vintage Ham Radio
http://www.justradios.com/cbschematics.html

Radio Bygones
http://www.radiobygones.co.uk

Antique Radio Classified
http://www.antiqueradio.com

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Data:

Valve Data - Sylvania Technical Manual 1943
http://www.bunkerofdoom.com/tubes/syl43/data/1943/1943.htm

Valve Data - Sylvania Technical Manual 1951
http://www.pmillett.com/sylvania_tube_manuals_online.htm

Mullard Valve Data
http://users.bigpond.net.au/emmerik/catalogue/valves84.html

RCA, R-10 Tube Data Manual
http://www.nmr.mgh.harvard.edu/~reese/RC10/

Coil Winding Wire Data (AVRS)

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Clubs & Societies:

AWA/OTB - Antique Wireless Association
http://www.antiquewireless.org

Antique Radio Club
http://www.antiqueradio.com/clublist.html

BVWS - British Vintage Wireless Society
http://www.bvws.org.uk

CVRS - Canadian Vintage Radio Society
http://www.canadianvintageradio.com

MAARC -Mid Atlantic Antique Radio Club
http://www.maarc.org

Michigan Antique Radio Club (SCARS)
http://www.michiganantiqueradio.org

Nederlands Historical Radio Society
http://www.nvhr.nl

NORSK – Norwegian Historical Radio Society
http://www.nrhf.no

NZVRS – New Zealand Vintage Radio Society (Inc)
http://www.nzvrs.pl.net

Edizoni
http://www.antiqueradio.it