10-21-2014, 02:52 PM
The 37-9 uses an H-30 speaker.
Field coil DC resistance should be 480 ohms; voice coil impedance 1.25 ohms.
You can find complete specifications of this and other 1929-1938 Philco speakers here:
http://www.philcoradio.com/phorum/showth...hp?tid=215
When you go to that link, look for the link to the file speakers.zip. This is an Excel 97-2003 file (*.xls format) which can also be opened by newer versions of Excel as well as by OpenOffice.
Field coil DC resistance should be 480 ohms; voice coil impedance 1.25 ohms.
You can find complete specifications of this and other 1929-1938 Philco speakers here:
http://www.philcoradio.com/phorum/showth...hp?tid=215
When you go to that link, look for the link to the file speakers.zip. This is an Excel 97-2003 file (*.xls format) which can also be opened by newer versions of Excel as well as by OpenOffice.
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Ron Ramirez
Ferdinand IN
