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37-9 loudspeaker impedance
Audiodoctor
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Posts: 4
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Joined: Oct 2014
City: United States
#6

10-22-2014, 01:14 PM
Here are the measurements just taken, and compared to the speakers.zip information:
Field coil: spec 480 ohms; measured 469 ohms.
Transformer primary: spec 660 ohms, measured 656 ohms.
Red and White voice coil spec 1.25 ohms; measured 430 ohms (DC) - with one lead disconnected from transformer

What is the flat- wound low resistance coil under the field coil called? It's in series with the voice coil and the secondary of the output transformer.
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Messages In This Thread
37-9 loudspeaker impedance - by Audiodoctor - 10-21-2014, 02:05 PM
RE: 37-9 loudspeaker impedance - by morzh - 10-21-2014, 02:25 PM
RE: 37-9 loudspeaker impedance - by Chuck Schwark - 10-21-2014, 03:10 PM
RE: 37-9 loudspeaker impedance - by Ron Ramirez - 10-21-2014, 03:52 PM
RE: 37-9 loudspeaker impedance - by Audiodoctor - 10-22-2014, 12:48 PM
RE: 37-9 loudspeaker impedance - by Audiodoctor - 10-22-2014, 01:14 PM
RE: 37-9 loudspeaker impedance - by morzh - 10-22-2014, 02:30 PM



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