Experiments with Spark Coils – Explosions, colored flames, a way to stop smoking and more things to do with your spark coil, as transcribed from the 1908 E I Co catalog #5 by Bart Lee.

Radiola Brochure –  Trying to decide which Radiola to buy? This catalog, circa 1926, can help.

A Book of Electrical Products – Need to buy a telegraph key, spark gap, X-ray tube, or model railroad? Want to explore the effect of Fuld currents on the body with a variety of interesting electrodes? This 1915 catalog from VoltAmp of Baltimore is just what the doctor ordered.

Something New: Coburn Radio – Bay Area radio enthusiasts will be interested to see the “Coburn Baby Grand”, a 3-dialer manufacturer located in San Leandro, California. Long since defunct…

1921 Radio Telegrapher Ads – Four pages of ads from the April 1921 issue of “The Radio Telegrapher” includes partial catalog list for Continental Radio & Electric of NY and 3 pages advertising WSE, Allied Code of the US, and International Radio Telegraph Co. of NY.

1916 Brandes Catalog – Sensitive “matched tone” headsets for your listening enjoyment

1920 Simon Catalog – Emil J. Simon manufactured radios for the U.S. and French Army and Navy in WWI. The company mostly made spark and arc transmitters. View the rare catalog of this obscure company and consider ordering their equipment for your next aeroplane.

1920 Annaka Radiotelephone Catalog – Probably the only existing copy of this obscure early Japanese manufacturer’s radio products. Have a looksee…

Robertson-Cataract Catalog – Pages from the Robertson-Cataract Electric Company (Buffalo, NY) 1922-1923 radio supplies catalog

Condor Tubes – Condor (Phillips) tubes, 1924

1909 McCarty Wireless Brochure – Rare (probably unique) investor brochure for the McCarty Wireless Radiotelephone System. Gives intriguing possibilities for a wireless phone with a 5-mile range.

1909 Wireless Catalog – From Paul Seiler Electric, SF, distributor of Hugo Gernsback’s Electro Importing Co. merchandise. Need a Leyden jar “powerful enough to kill a cat with a single discharge”? How about phones “that saved the ‘Republic'”? Here they are.

Airex 1934 Catalog – Buyer’s Guide from Airex on NYC’s Radio Row

Automatic Radio Tom Thumb Screen Grid Portable – The “Great Radio Sensation” circa 1929

DeForest RT&T Receiving Apparatus Catalog D – DeForest Interpanel, Audion, Oscillion, etc. circa 1921

Hallicrafters Presents – Hallicrafters sales brochure circa 1956

Radio Dealer’s Apparatus Guide 1931 – Wholesale price list, possibly from Silver Marshall in Chicago

RCA Radio Apparatus for Broadcast Reception – From The Radio Stores, Los Angeles, probably 1923

Universal Microphone 1933 Catalog – From Inglewood, CA, with enclosures on mikes, etc.