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Search: Posts Made By: Sevarg

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Forum: Tech Log

17th Aug 2016, 21:24

Replies: 81

115V/400Hz

Views: 39,694

Posted By Sevarg

400hzs

On early intercoms the band was 500 to 3500 cycles (no hzs in those days). To stop the leakage of noise from the A/C power to the I/c 400 c/s was used. Greater than 3500 and the loses became too...

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