Philco 20, 70, or 90 field coil impedence?

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Philco 20, 70, or 90 field coil impedence?

catman351
Junior Member

Posts: 4
Threads: 2
Joined: Jun 2017
City: Tampa, FL

#1

06-19-2017, 02:02 PM

Hi:
What is the impedance of the field coil for the above speakers? I'm thinking about substituting the field coil in the power supply for an equivalent choke. I'm trying out a different audio output circuit using a PM speaker. Thanks. Cal.

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Messages In This Thread

Philco 20, 70, or 90 field coil impedence? - by catman351 - 06-19-2017, 02:02 PM

RE: Philco 20, 70, or 90 field coil impedence? - by Nathan Slingerland - 06-19-2017, 02:22 PM

RE: Philco 20, 70, or 90 field coil impedence? - by catman351 - 06-19-2017, 03:07 PM

RE: Philco 20, 70, or 90 field coil impedence? - by Radioroslyn - 06-19-2017, 03:42 PM

RE: Philco 20, 70, or 90 field coil impedence? - by morzh - 06-19-2017, 03:57 PM

RE: Philco 20, 70, or 90 field coil impedence? - by catman351 - 06-19-2017, 04:42 PM

RE: Philco 20, 70, or 90 field coil impedence? - by Radioroslyn - 06-19-2017, 05:58 PM

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