Eastern Low Loss Couplers -1925A.jpg ThumbnailsSignal Condensers -1925AThumbnailsSignal Condensers -1925A
Can't get much more experimental than with the Eastern Low Loss Coupler, in the famous pickle bottle form designed by M. B. Sleeper. From Eastern Coil Corp. Published in the March, 1925 issue of RADIO NEWS.



Source: Magazine collector Steve Davis

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