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Vintage Wireless Radio Slide Tuner - Marconi

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Trenchartman's items6 of 32Freed Eisemann Broadcast Receiver Model NR-215De Forest Long Wave Type Radio Receiver R 36 Made for U.S. Coast Guard
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    Posted 6 years ago

    (32 items)

    Here is another piece I purchased recently. Just found out this is a wireless radio slide tuner from around 1913. The smaller cylinder slide into the larger cylinder and there is a knob on the end with some contacts. The cylinders are wrapped in a green string.
    Thanks for looking,

    Mystery Solved


    1. blunderbuss2 blunderbuss2, 6 years ago
      Boy, this goes back! Would probably spend a lot of time looking for the few stations back then? This is like a crystal tuner?
    2. walksoftly walksoftly, 6 years ago
      Wow, thats quite the piece of wireless history!
      The patent refers to wireless telegraphy & the coils wound in silk covered copper wire.

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