- Airphone Products -1923A 2465 visits
- Allied Knight Radios -1936A 2656 visits
- Atwater Kent Amplifiers -1922A 1876 visits
- Black Mask 1939-12 3275 visits
- Black Mask 1948-07 8414 visits
- Boys' Life 1913-04 2871 visits
- Briggs & Stratton Headphones -1922A 1826 visits
- Capt. Billy's Whiz Bang 1926-08 2718 visits
- E. H. Scott Radios -1936A 1934 visits
- Farmer's Wife 1934-07 4023 visits
- Frost Fones -1922A 1773 visits
- Jewett Radio Tuners -1922A 1755 visits
- Kodel Radios -1925A 1238 visits
- McMurdo Silver Radios -1936B 1459 visits
- Midwest Radio -1922A 1231 visits
- Midwest Radio -1936A 1375 visits
- Moon Loudspeakers -1922A 1417 visits
- Radio 1927-11 2331 visits
- Radio Corporation of America -1922B 1588 visits
- Radio Corporation of America -1922C 1299 visits
- Radio Digest 1928-09 1586 visits
- Radio Digest 1930-04 2008 visits
- Radio Digest 1930-08 1725 visits
- Radio Digest 1930-12 1842 visits
- Radio Digest 1931-11 1268 visits
- Radio Digest 1932-01 1144 visits
- Radio Digest 1932-11 1185 visits
- Radio Engineering 1924-10 2236 visits
- Radio Guide 1934-09-15 1759 visits
- Radio Guide 1934-09-22 2066 visits
- Radio News 1936-10 1399 visits
- Radio News 1947-09 1487 visits
- Radioland 1934-11 1487 visits
- Scientific American 1899-10-28 1177 visits
- Scientific American 1903-02-07 1224 visits
- Short Wave and Television 1937-09 1850 visits
- Tower Radio 1934-05 1321 visits
- Tower Radio 1934-10 1474 visits