EPEmag
Active Ferrite Loop Aerial
Approx construction cost US$56

Active Ferrite Loop Aerial project -- EPE Online September 2000

Whether you're a serious Medium-Wave listener or just an inveterate band browser, this compact loop aerial will be an aid to better reception.

Large loop or frame aerials were a common part of the 1920s domestic radio scene, but their popularity waned during the thirties when an external wire became the normal means of signal pick-up.

A decade later, improved receiver sensitivity made it possible for small loops to be enclosed within the cabinets of portable and table sets. At the close of the fifties, in the twilight of the valve era, very high permeability ferrites were introduced. Rod-like cores of this material enable a tiny coil to pick up signals better than a small, air-cored loop, and ferrite aerials are now found in most domestic receivers.

This project describes a very compact loop aerial, which will provide an aid to better reception.

This project originally appeared in the September 2000 issue of EPEOnline.   >> PURCHASE <<

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