Early Radiotag:www.hidden-knowledge.com,2007-10-01:/mkpix.org/blogs/early_radio//62009-11-21T22:38:26ZWords and pictures about the early days of Radio: broadcasting; listening; amateur, commercial, and military communication.Movable Type Publishing Platform 4.01Experimental Wireless Stationstag:www.hidden-knowledge.com,2009:/mkpix.org/blogs/early_radio//6.352009-11-21T22:15:45Z2009-11-21T22:38:26Z Philip E. Edelman's book Experimental Wireless Stations includes some interesting photographs. Here's a one kilowatt amateur station from the 1920 edition: Edelman's book was first published in 1912, and there was at least one other edition, in 1922. In...MikeExperimental Wireless Stations includes some interesting photographs. Here's a one kilowatt amateur station from the 1920 edition:
Edelman's book was first published in 1912, and there was at least one other edition, in 1922. In recent times, the book has been reprinted by a number of companies that specialize in public domain works, and these can be found at Amazon by clicking on the book's title in the first paragraph. The BiblioBazaar edition listing on Amazon lets you look inside and see a few typical pages from one of the editions (probably 1920 or 1922). Thanks for Steve Davis for the scan!]]>
Wireless Telegraphy and Telephony 1922tag:www.hidden-knowledge.com,2009:/mkpix.org/blogs/early_radio//6.342009-01-24T00:54:00Z2009-01-24T01:04:01ZHere's the 1922 edition of A. P. Morgan's book; earlier editions were published in 1912 and 1915. Just for fun we see a couple of pictures of field radio equipment; unfortunately, the pictures themselves aren't dated. From Steve Davis.Telefunken wireless...Mike Telefunken wireless cart, transmitter side:
And the receiver side (you couldn't exactly call this a transceiver): As always, click on the images to bring forth magically the larger versions.
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Wireless Telegraphy Manual from 1915tag:www.hidden-knowledge.com,2008:/mkpix.org/blogs/early_radio//6.312008-12-03T06:00:02Z2008-12-03T06:09:52ZSteve Davis sends along scans of the cover and the introduction page from a wireless manual published in 1915. It's a good benchmark for just how things changed in the next ten years. Not to say things aren't changing now,...Mike And the Introduction: Consider how cool it must have been for the two teenagers in 1915, who could accomplish text messaging and all sorts of other advanced telegraphic geekery.
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Gernsback Changes the Worldtag:www.hidden-knowledge.com,2008:/mkpix.org/blogs/early_radio//6.302008-11-19T22:39:28Z2008-11-19T22:52:24ZHere's the cover of a late (1919) catalog from the Electro Importing Company, courtesy of Michael Holley. It was doing this company and these catalogs that got Gernsback into the magazine business, and if he hadn't done that...well, who knows...Mike
Michael Holley has been adding extensively to the Wikipedia articles on Gernsback, his magazines, and his history in the field. ]]>
Radio Enters the Hometag:www.hidden-knowledge.com,2008:/mkpix.org/blogs/early_radio//6.292008-10-02T21:41:32Z2008-10-02T21:58:37ZIn 1922 RCA took an advertisement in the August issue of RADIO NEWS to publicize a book showing that radio was now ready for everyone to take home and dance to. Here's that book cover image, shown in more detail:...Mike
advertisement in the August issue of RADIO NEWS to publicize a book showing that radio was now ready for everyone to take home and dance to.
Here's that book cover image, shown in more detail:
[Click image to see larger version.]
Compare this to the back cover of the Sears radio catalog from 1924, just two years later.
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Personal Artifacts of the ARRLtag:www.hidden-knowledge.com,2008:/mkpix.org/blogs/early_radio//6.272008-07-05T22:41:40Z2008-07-05T22:58:18ZSteve Davis, who has sent dozens of cover scans to me for the magazineart.org website, included a duplicate with a note that it was signed by, and apparently belonged to, F. E. Handy, one of the early big cheeses of...Mike
He's selling it now on eBay, and currently it's fairly cheap; but the auction ends soon.
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Poulsen Arc Radiophone Transmittertag:www.hidden-knowledge.com,2007:/mkpix.org/blogs/early_radio//6.232007-12-31T20:28:33Z2009-08-23T21:14:11ZMike
Another image from Goldsmith's 1918 book.
You can buy a copy of the Goldsmith book for yourself. ]]>
Two Guides for Radio Constructors, Circa 1925tag:www.hidden-knowledge.com,2007:/mkpix.org/blogs/early_radio//6.192007-11-30T20:22:56Z2009-01-12T02:50:49ZFrom Steve Davis, photoshopped for clarity:...Mike
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Some Extremely Early Radiotag:www.hidden-knowledge.com,2007:/mkpix.org/blogs/early_radio//6.142007-10-23T03:51:50Z2007-10-23T03:55:05Z From Alfred N. Goldsmith, "Radio Telephony" (Wireless Press; 1918). It's the "Berliner-Poulsen 3KW Arc Radiophone Station." Click for larger....Mike
From Alfred N. Goldsmith, "Radio Telephony" (Wireless Press; 1918). It's the "Berliner-Poulsen 3KW Arc Radiophone Station." Click for larger.]]>
Hugo Gernsback and the Electro Importing Companytag:www.hidden-knowledge.com,2007:/mkpix.org/blogs/early_radio//6.132007-10-06T01:04:30Z2007-10-06T01:11:55ZA recent immigrant from Luxembourg, Hugo Gernsbacher started a company to import European electrical and radio parts to sell to American enthusiasts. Soon he found himself publishing not just a catalog, but a magazine called MODERN ELECTRICS. Not surprisingly, EIC...Mike
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The World Changedtag:www.hidden-knowledge.com,2007:/mkpix.org/blogs/early_radio//6.122007-10-02T18:02:33Z2007-11-30T22:25:43ZWhen radio became popular in the middle of the 1920's, the world changed. Staid marketers like Sears, Roebuck latched onto the new trend and remade themselves as the foremost purveyors of the new fad. Have your teenaged friends over for...Mike
When radio became popular in the middle of the 1920's, the world changed. Staid marketers like Sears, Roebuck latched onto the new trend and remade themselves as the foremost purveyors of the new fad.
Have your teenaged friends over for a dance party, right in your own living room! Mom will feed the hungry crowd, and Dad will try to read his newspaper, but won't be able to resist tapping his toe to the music.
Special thanks to Radio material collector Steve Davis, for these images from his collection. [We Photoshopped them a bit to restore them to their original state.] Steve adds, "This Sears catalog was the first Sears radio-specific catalog, family and socially oriented. Earlier catalogs were electrical
appliance catalogs, with radios in them." For more Radio material, try the MagazineArt.org site.
includes some interesting photographs. Here's a one kilowatt amateur station from the 1920 edition:
Edelman's book was first published in 1912, and there was at least one other edition, in 1922. In recent times, the book has been reprinted by a number of companies that specialize in public domain works, and these can be found at Amazon by clicking on the book's title in the first paragraph. The BiblioBazaar edition
listing on Amazon lets you look inside and see a few typical pages from one of the editions (probably 1920 or 1922). Thanks for Steve Davis for the scan!]]>
for yourself. ]]>
