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The sound systems of these old radios are designed to provide frequency response best suited to AM radio and 78 RPM records since that was all there was!
We have had good results improving treble response on field coil speaker type jukeboxes by just adding a tweeter to the voice coil circuit and using the orginal field coil speaker as the woofer. We used a non-polar electrolytic in series with the tweeter to block low frequencies to it (about 10 mfd) and just connected it into the voice coil circuit of the original speaker.
You may even be able to make a "coaxial" two-way speaker by carefully mounting the tweeter to the front of the field coil speaker using thin metal or wood strips.
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10-07-2007, 09:12 PM
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