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speaker question.
Ron Ramirez
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Posts: 13,776
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City: Ferdinand State, Province, Country: Indiana
#3

03-31-2018, 05:46 PM
Nope, the 71B used a K-7 speaker which has an 1125 ohm field coil. 20, 70 and 90 cathedral speakers all have 3100 ohm field coils.

more info here:
http://www.philcoradio.com/phorum/showth...hp?tid=215

Scroll down to, and download speakers.zip which was made in and intended for Microsoft Excel but also works in LibreOffice Calc and OpenOffice Calc.
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Ron Ramirez
Ferdinand IN
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Messages In This Thread
speaker question. - by sumnerplace - 03-31-2018, 04:57 PM
RE: speaker question. - by Radioroslyn - 03-31-2018, 05:17 PM
RE: speaker question. - by Ron Ramirez - 03-31-2018, 05:46 PM
RE: speaker question. - by sumnerplace - 03-31-2018, 05:48 PM



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