| The
transistor radio directory (first issue
April 2, 1998)
The
Sony codes (first issue July 16, 2000)
Marconi
transistor radios (first issue July 2, 2001)
Sony TR-610: click here
if you wish to read or download the article published in Antique
Radio Magazine #49, June 2002
Zenith R-500: click here
if you wish to read or download the article published in Antique
Radio Magazine #61, June-July 2004
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