Archive for the 'Radio' Category

Wireless Radio in 1924

WIRELESS offers more scope for enjoyment than any other hobby. This is a big claim, but any one who has cultivated wireless knows that it is a claim that can be supported by facts. The one outstanding feature of wireless as a hobby is that it can be pursued anywhere, at any time. In dry [...]

High Frequency Sound Waves 1925

SOUNDS TOO HIGH TO HEAR SOUND-WAVES of too high a pitch to affect the ear have been produced and are likely to prove useful, we are told by an editorial writer in The Electrical World. Such waves, of course, are not sound in the strictest sense, for sound-waves are due to vibrations within the audibility [...]

Radio Advancements in 1929

RADIO ADVANCES 1929 by JOHN V. L. HOGAN Radio Engineer and Inventor THE growth of radio during 1929 has been not only in the improvement of technical processes and apparatus, but also in the organization and extension of its services and in the adaptation of radio principles to work in various other fields. Public contact [...]

Atwater-Kent Radios 1927

Atwater-Kent Radios MODEL 3S, 6-tube ONE Dial Receiver, less tubes and batteries. $70. Speaker, Model H, $21. Other ONE Dial Models, $85 to $140. Radio Speakers, $16 to $23. ANY ONE who can make and sell a million of anything in four years must be making a product which satisfies those who use it. Atwater [...]