Yes, Speakers are repairable ...

Discussion in 'Radio Circuits, Repair & Performance' started by W9GB, Nov 17, 2017.

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  1. KL7AJ

    KL7AJ Premium Subscriber QRZ Page

    Just did some minor repair on the speaker of my 1939 Philco floor radio. The cats thought the cone would perform better with a few holes in it. I felt otherwise.
    By the way, if you ever need to replace a field-coil type speaker with a permanent magnet one....don't. The field coil is actually integral with the power supply...it acts as the filter choke. Quite a clever little circuit actually. If you do ABSOLUTELY need to replace the speaker, be sure to insert about a 10 Hy choke where the field winding was on the old one.
     
  2. AD5HR

    AD5HR Ham Member QRZ Page

    Speaker repairs go all the way back to the "horn" speakers of nearly 100 years ago.
    I have N.I.B., a Carron brand "Universal Field Coil Replacement" probably from the
    Twenties. Only thing I see "universal" are several sizes of cardboard shims, both
    tubular, and disc shaped to fit different horn drivers.
    No idea of value, just another shelf display found in a "box under the table".
    AD5HR, Jon
     

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