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Shadow Meter Question
morzh
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#2

05-10-2016, 03:20 PM
1. 1000 feet of #40 gauge enameled copper wire will be needed to rewind the coil in the Shadow Meter assembly. It just so happens that #40 gauge wire has a resistance of about 1.1 ohms per foot. So in a typical radio, a current draw of 10ma. will give the 10 volt drop across the coil that it takes to operate the shadow vane correctly.

(calculates at 1,100 Ohms)




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Messages In This Thread
Shadow Meter Question - by joybird - 05-10-2016, 02:35 PM
RE: Shadow Meter Question - by morzh - 05-10-2016, 03:20 PM
RE: Shadow Meter Question - by joybird - 05-10-2016, 04:00 PM
RE: Shadow Meter Question - by joybird - 05-21-2016, 06:58 AM
RE: Shadow Meter Question - by morzh - 05-21-2016, 08:19 AM



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  1. The PHILCO Phorum
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