07-06-2018, 07:58 PM
According to Philco 660 schematics, it used an H-13. The voice coil should be 1.1 ohms, the field coil should be 1125 ohms, and the output transformer should be 310 ohm primary, with a center tap.
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H-13 Speaker?
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H-13 Speaker? - by GregL - 07-05-2018, 09:02 PM
RE: H-13 Speaker? - by wardmc1 - 07-06-2018, 02:42 PM
RE: H-13 Speaker? - by Brad Winder - 07-06-2018, 07:58 PM
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