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Old 27th September 2010, 06:24 PM   #1
diyAudio Member
Join Date: Dec 2009
Location: French Republic
Question Field Coil Jensen Speaker 1928

Hi everybody,

I have a very old Jensen electrodynamic speaker :
Click the image to open in full size.

I found it in a RCA loudspeaker 106 (maybe modified) :
Click the image to open in full size.

The tube amp uses 6005 (6AQ5W) and EF40.

here's the diagram :
Click the image to open in full size.

The problem is : I don't know what wiring I need to use on the field coil of the speaker, neither the voltage I should use on it (100V DC ???)

Thank you for your consideration.
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Old 28th April 2013, 07:54 PM   #2
diyAudio Member
Join Date: Jan 2012
It looks pretty much like my Jensen D8 speaker, see pics.

So is it still there after 3 years? how was it went?
Attached Images
File Type: jpg Jensen D8 - 01后屁股.jpg (117.4 KB, 93 views)
File Type: jpg Jensen D8 - 02振盆.jpg (113.3 KB, 88 views)
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