Letter (Astounding, April 1944): Well, Twenty Pounds of Magnet Wire, an Old Transformer and a Discarded Radio Set Will Do It—
| First published | April 1944 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| April 1944 | Astounding Science Fiction, April 1944 | Street & Smith Publications, Inc. | MAGAZINE | 178|178.2 |