Terraquaphone: 1961 Ground Current Communicator

Sixty years ago, this duo were communicating up to 1500 feet from ship to shore thanks to a pair of devices dubbed the Terraquaphone. The plans for constructing the came from the September 1961 issue of Electronics Illustrated. The device relied on a principle we’ve seen before, namely the use of earth currents. Each Terraquaphone […]

1942 Ground Current Communication

During World War II, Amateur Radio was off the air for the duration. However, unlike the situation in the First World War, hams were allowed to keep their equipment, and there were no restrictions on listening. Hams were eager to communicate, and with radio unavailable, they were eager to explore other possibilities. Starting with the […]

2024 Eclipse Campgrounds

This is a listing of camping that will be available prior to the April 8, 2024 eclipse.  We maintained a similar list in 2017.  Some of the listings were for organized events, and some were merely property owners making their property available.  If you would like your camping facility listed here, please contact me at […]

1985 Grocery Prices

For a snapshot of grocery prices in 1985, this ad appeared in the Pittsburgh Post Gazette, Septeber 4, 1985. A pound of ground beef was 85 cents, and bacon was $1.39 per pound. Cucumbers were five for a dollar, and five pounds of potatoes were $1.09. A package of frozen waffles was 79 cents. Of […]

1944 One Tube Receiver

Eighty years ago this month, the May 1944 issue of Radio Craft carried this circuit for a one-tube receiver. It had been sent in to the magazine by one Bob Smith of Montclair, NJ, who pointed out that standard plug-in coils could cover the shortwave and broadcast bands. He added one word of caution, “do not […]

The Importance of Polarized Plugs

This picture appeared 70 years ago today in the March 2, 1953, issue of Life magazine. The gentleman in the center is A.W. Shackleford, the mayor of Lethbridge, Alberta. He is demonstrating the importance of using grounded outlets, or at least polarized plugs. He was speaking into one microphone, addressing 800 Valentine’s Day dancers. A […]

1937 Grocery Prices

For a snapshot of grocery prices 85 years ago today, this ad appeared in the Pittsburgh Post Gazette on February 18, 1937. At first glance, the prices look like bargains, but the Great Depression was in full force, and for many, there wasn’t a lot of money to go around. According to this online inflation […]

Santa Claus Beacon Activation

Once again this year, to assist him with precision navigation, Santa Claus has asked OneTubeRadio.com to activate its non-directional beacon (NDB).  We will, of course, be complying with this request, and we have activated a beacon on 1610 kHz.  Santa will use the automatic direction finding equipment (ADF) installed in his sleigh to home in on the […]