Publication 19 of the Radio Amateur's Library
A tutorial on the theory of radio with emphasis on the practical application to amateur radio. Five known editions, 1942-1972.
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1st ed. - 1942 2nd ed. - 1946 3rd ed. - 1948 |
3rd ed. 3rd printing - 1948 5th printing - 1948 8th printing - 1948 |
4th ed. - 1960 3rd printing - 1960 4th printing - 1960 |
5th ed. - 1972 |