Several of my farm radios appear to be missing the back cover (screw holes are there), which I assume amy have ben attached the antenna. Is there soe literature or ideas on improvising an antenna on a new back cover?

Brian,

Your radios may have had a "loop" antenna. However, if there is a screw terminal strip on the back (marked A & G ) or have flying wire leads coming out of the radio for the antenna, then a long wire antenna of 10 to 20 feet can be used.

Radiodoc
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:Several of my farm radios appear to be missing the back cover (screw holes are there), which I assume amy have ben attached the antenna. Is there soe literature or ideas on improvising an antenna on a new back cover?

:Brian,
:
:Your radios may have had a "loop" antenna. However, if there is a screw terminal strip on the back (marked A & G ) or have flying wire leads coming out of the radio for the antenna, then a long wire antenna of 10 to 20 feet can be used.
:
:Radiodoc
:************
:Brian,
If you don't know for sure you can find the model numbers of the sets and check the schematic to see if it shows a loop. If it does use a loop, it was specifically tuned to match the set. Using the wrong loop can dramatically decrease reception. You can replace it with an antenna coil from antique electronic supply and several turns of wire inside the cabinet or on a new back made of thin wood or cardboard. Just wire the antenna coil and the loops of wire in series with the two loose wires that went to the original loop. The AES coil is tunable. Rotate the slug in and out until you get the strongest signal. When you hit the right spot it will dramatically increase in volume. It is then tuned to match the radio.
Ken
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::Several of my farm radios appear to be missing the back cover (screw holes are there), which I assume amy have ben attached the antenna. Is there soe literature or ideas on improvising an antenna on a new back cover?