This is the first edition of the US Signal Corps, a division of the US Army, released on December, 1918 that is named principals Underlying Radio Communication. It has much great information on early wireless communication and is worth the read. There is a second edition, 1921, that has a bit more modern look at...
My son recently visited Scotland and found this small wireless museum in Kirkwall in the Orkney islands and took these 4 pictures. Orkney is group of islands situated north of the Scottish mainland in the North Sea. The museum is maintained by a group of wireless enthusiasts and collectors and the city of Kirkwall. The...
This was an important historical paper written by B. S. Gossling in June, 1920 for the Wireless Sectional Meeting and appeared in the Journal of the Institution of Electrical Engineers or JIEE in Britain. It describes the introduction of radio valves into wireless telegraph installations. There are a number of prominent early radio and valve...
I submitted a series of articles written by Frank Butler to Lud Sibley while he was the editor and creator of the TCA magazines. While there were too many pages at 27 to include in a mag, I suggested a special publication with a .PDF on a DVD. It was never done. However, I provided...
George E. Brightson re-incorporated the Sonora Chime Company in 1913 on Ceder Street in New York City. He then changed the name to Sonora Phonograph Company and re-located to Reed Street, New York City. His leadership brought Sonora to the for front of phonograph companies in the US. 2 of the company’s artwork logos are...
Figs. 1 and 2 shows a UV 01A Royal Blue Laboratories tube, made in Newark, New Jersey starting in 1926. It has a S-18 bulb shape but otherwise made somewhat like a Brightson, with a mottled maroon colored base. Inked on the base are just enough letters, about half, to prove it is in fact...
The before repair picture above is the un- cropped double exposure taken by amateur photographer Father Francis Browne on April, 12th, 1912 and was just one of a good number of photos taken on his journey from Liverpool, where he was studying to become a Catholic priest. From Liverpool he would travel by rail to...
I present this article, every so often, to remind vacuum tube collectors what the business was like, in the early 20’s, after WW1 for the powers that be to enforce their patent rights. Patents are only as good as your policing of them. This article appeared in the November, 1924 issue of “Radio” magazine.
This postcard was conceived by prominent artist Charles Allen Gilbert (1873-1929) around 1909 and his female subjects called “Gilbert Girls” appeared in hundreds of magazines, etc., around the country. I have seen this same subject in a full-sized framed calendar as well with smaller tear-off days and months at the bottom for the year 1910....
The Marconi catalog above is without a doubt the most accurate and finest scan of the original that can be had. Prominent Marconi collectors, Felicia and Jim Kreuzer, provided the front and rear cover and answered many questions as to what was in between, meaning the pages that are blank. As can be seen, the...