Thanks for the verification on the 753 woofer! A15PM is about what it should be in Jensen translation.
By the late 40s, most of the standard Jensens that I have seen were simply labeled PM12 or PM15 (A-C), whereas the A15PM designation reminds me more of the late 30s when the A series speakers were mostly field coil (F12 or F15) and the PM versions cost more! They were Alnico III then, I think.
By the late 40s, most of the standard Jensens that I have seen were simply labeled PM12 or PM15 (A-C), whereas the A15PM designation reminds me more of the late 30s when the A series speakers were mostly field coil (F12 or F15) and the PM versions cost more! They were Alnico III then, I think.
Years later...I measured and sketched out the dimensions of a Western Electric L8 and I'm posting this info here for the record.
Note: side parts add up to 70cm but I wrote 80cm in the heat of the moment. Not sure which is correct offhand but there is enough info given to calculate that out.
If any body build this, make me a pr also! ;op
Attached also an image of the crossover schematic.
Note: side parts add up to 70cm but I wrote 80cm in the heat of the moment. Not sure which is correct offhand but there is enough info given to calculate that out.
If any body build this, make me a pr also! ;op
Attached also an image of the crossover schematic.
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The little known and seldom-seen L Series WE theater systems of the late 40s are described in general terms for a pro audience in this article from another time and mental space.
New Theater Loudspeaker System
H. F. Hopkins; C. R. Keith
Journal of the Society of Motion Picture Engineers
Year: 1948, Volume: 51, Issue: 4
SMPTE Journals & Magazines
New Theater Loudspeaker System
H. F. Hopkins; C. R. Keith
Journal of the Society of Motion Picture Engineers
Year: 1948, Volume: 51, Issue: 4
SMPTE Journals & Magazines
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