Aanwinsten NVHR Online Bibliotheek (Algemeen)

door John Koster ⌂ @, Utrecht, 20.02.2019, 11:10 (275 dagen geleden) @ John Koster

Bradley, Edwin N. - The midget radio construction manual. 1949
Camm, F.J. - Practical wireless circuits. 1943
Jones, Bernard E. - Loud-speaker crystal sets; a practical handbook on building the most efficient crystal sets, with a section fully explaining the "A.W." crystal loud-speaker system. 1925
Jones, Bernard E. - Simple crystal receiving sets and how to make them. 192?
Osterhoudt, Elmer G. - Headphones: operation and repair. 1948
Osterhoudt, Elmer G. - How to make coils. 1957


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