#2056 - 20¢ Edwin Armstrong - inventor
Edwin Armstrong was an American electrical engineer who invented frequency modulation (FM) radio. Prior to FM, broadcasts were conducted as AM radio. FM delivers a much clearer sound, though the signal does not have as far a range. Scott 2056 Edwin Armstrong
Starting at $0.25
| #2056 - 20¢ Edwin Armstrong - inventor | ||
|---|---|---|
| mint $1.50 | Add to Wish List 2056 M | |
| used $0.25 | Add to Wish List 2056 U |
Related Products
Other Products You Might Like
St. Vincent #1643 Elvis Presley
Regularly $9.50 Special $7.50
Apollo 11 Moonlanding St. Vincent #4155
Regularly $11.00 Special $8.95
