03-04-2019, 07:35 PM
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The original Philco speaker used was K-7 (or K-21 in later models). But you can use any K series speaker with an 1125 ohm field coil and by adding the proper output transformer to match a 7100 ohm impedance plate load to a 1.25 ohm voice coil.
The original Philco speaker used was K-7 (or K-21 in later models). But you can use any K series speaker with an 1125 ohm field coil and by adding the proper output transformer to match a 7100 ohm impedance plate load to a 1.25 ohm voice coil.
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Ron Ramirez
Ferdinand IN
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