BBC Test Card Club - Rare photos of BBC Trade Test Transmissions and Identification Symbols from Keith Hamer's Collection. Includes pages on DX-TV.
Bergstam, Thomas - Provides photographs of test cards from television.
Test Card Circle - Learn about the history of British "Testcard" music played during television closedown periods.
Testcard View - Dutch DX-er's site, with famous testcards received by atmospherics in the Netherlands.
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