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OhGizmo!: OhGizmo! » Archive » Bluetooth Cassette Adapter

  • Ian Weir · 1 year ago
    I'm curious to know if it would be feasible for a product like this to use the rotors or spindles or whatever you call them from within the tape deck itself to power it, or at the very least provide a bit of juice to prolong the life of the battery.
    Perhaps you could set it to fast forward/rewind when you're not using it in order to charge it?
  • Evan Ackerman · 1 year ago
    That's an incredibly good idea. I wonder what kind of torque your average cassette deck puts out...
  • Gavin · 1 year ago
    The standard speed is 1.875 inches per second (4.76 cm per second).
    The speed of the spool in fast forward is about 15 times as that in the play mode.
    ( from: http://www.cse.iitk.ac.in/~amit/courses/371/ada...)
    They have some scale drawings, you could get a diameter of the flywheel....
    Add in three years of physics I've forgotten and Presto....
    Torque.

    would the magnets interfere with the audio equipment?How about a contact plate at the back of the deck. better yet why arn't decks bluetooth capable anyway?

    I demand answers
  • Oregon Engineer · 1 year ago
    No problem with the basic idea. The price of the thing would probably jump $20 because of the expense of the generator/power inverter electronics. That would be a no-brainer for me, though... because the idea of having a device I could just stuff MP3's into and then drop into the tape deck without having to worry about batteries seems delightful.