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Thread: Vintage Radio

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    Vintage Radio

    My 1964 BJ8 came with a vintage radio in a box along with some other parts. There is no identification on the radio except the dial face says "All Transistor". It is an AM pushbutton, with a switch on the back for neg or pos ground. There is no speaker with it. Do the radios of this vintage require 4 ohm or 8ohm speaker, or does it make any difference?

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    Jedi Knight vette's Avatar
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    Re: Vintage Radio

    Hubert, I don't have any expert knowledge about radios but I have a vintage radio for an old Corvette that I have been planning to get done. In that here is a fellow that with his wife restores and upgrades vintage radios of all makes. I have run into him a number of times at his booth at the Carlisle Car Shows through out the year. At Carlisle, Pa. He is an older gentleman whom I believe is retired from another career but he has been at these Car Shows for many years. He has always been enjoyable to talk to and volunteers any information easily about radios and electronics. I believe he will help you with all your vintage radio needs.
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    "...you really can't restore a car in 10 days. I don't want to watch a race where people have to restore it in a week. It's not going to drive, and those cars never work. In real life, it takes years to get it right. " Jay Leno.

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    Yoda glemon's Avatar
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    Re: Vintage Radio

    You should be able to run either, all other things being equal you will get more volume out of 4 ohm speakers. On old cars/radios with limited amps they did 4 ohms for that reason, then 8 ohms kind of became the default, and now with modern high power amps they have gone back to 4 ohms for high power stuff.

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    Great Pumpkin Keoke's Avatar
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    Re: Vintage Radio

    Audio Power transfer between a radio or an audio amplifier are maximum if and only if the output impedance's of the device and its speaker are are matched.

    I am sure a little research on google can solve this Radio,s output impedance.
    1966 Daimler V8 Saloon; Safely Fast, Built to Last & and; Smooth as Glass.
    1966 BJ8 [ 2 ] Lil Red & Miss bLU
    1985 XJ6 Saloon
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    Re: Vintage Radio

    Quote Originally Posted by Keoke View Post
    Audio Power transfer between a radio or an audio amplifier are maximum if and only if the output impedance's of the device and its speaker are are matched.

    I am sure a little research on google can solve this Radio,s output impedance.
    Even in the case where a radio is designed to work with an 8 Ohm speaker impedance, the amplifier section will try and deliver twice the power at 4 Ohms. However, distortion may well be be higher as the amplifier is potentially being overloaded.

    See here:

    https://geoffthegreygeek.com/speaker-impedance-changes-amplifier-power/


    https://www.gcaudio.com/tips-tricks/...nd-amplifiers/

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    Jedi Knight smaceng's Avatar
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    Re: Vintage Radio

    Make sure the polarity of the radio is the same as the Healey.
    If you hook it up wrong, most likely the radio will be toast.
    Cheers,
    Scott in CA
    1973 TR6

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    Luke Skywalker
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    Re: Vintage Radio

    Can you get AM broadcasts these days? I suppose that there must be something in the Ether




    Bob

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    Yoda
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    Re: Vintage Radio

    Quote Originally Posted by Bob Hughes View Post
    Can you get AM broadcasts these days? I suppose that there must be something in the Ether
    Over here, it's sports, right-wing talk and Spanish language stations.

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    Luke Skywalker
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    Re: Vintage Radio

    Right

    It's so old

    I don't suppose that they have the results on the Battle of Waterloo!



    Bob

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    Re: Vintage Radio

    Quote Originally Posted by Bob Hughes View Post
    Right

    It's so old

    I don't suppose that they have the results on the Battle of Waterloo!



    Bob
    Well:
    Maybe if you happen to dial in on" What happened on June 18 "---.
    1966 Daimler V8 Saloon; Safely Fast, Built to Last & and; Smooth as Glass.
    1966 BJ8 [ 2 ] Lil Red & Miss bLU
    1985 XJ6 Saloon
    1948 & 70 Lincoln continentals
    1973 Volvo P1800ES

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