THIS RADIO HAS BEEN SOLD! |
By Charles R. Leutz. Newer, exact reprint of a booklet first published in 1924. All about the (at the time) brand-new development of the superhet circuit and how to incorporate it into your radio experiments. 9" x 6", high-quality reprint, 86 pages. Photos, ads and diagrams are crisply reproduced and very legible. Near-mint condition. |
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