Number | Name | Date | Kind |
---|---|---|---|
2229865 | Morgan | Jan 1941 | |
2282292 | Amy et al. | May 1942 | |
2989626 | Welch | Jun 1961 |
Entry |
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Minarik, "Adding 21MC To The Off-Center-Fed Antenna", Radio & TV News, Jun. 1958, p. 48. |
DeMaw, "Lightweight Trap Antennas-Some Thoughts", ARRL Senior Technical Editor, Jun. 1983, pp. 15-18. |