What are the 2 general types of waves?
Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.
What color has highest frequency?
Violet waves
Violet waves have the highest frequencies.
What was the model number of a Zenith Radio?
If the leading number is 1 (IE 5S128) the radio was built for the 1937 model year. In our example of the 12S232, the radio was built for the 1938 model year. This scheme holds true for radios built through 1942, when Zenith halted civilian radio production to enter the war effort.
When was the zenith 12s232 model year made?
In our example of the 12S232, the radio was built for the 1938 model year. This scheme holds true for radios built through 1942, when Zenith halted civilian radio production to enter the war effort. Zenith did not produce radios for the general public again until late 1945, and were sold as 1946 models.
When did zenith come out with the Robot Dial?
In 1938 Zenith released several models of 12-tube table radios with what Zenith referred to as their “Robot Dial.” The Zenith robot dial was equipped with a tuning eye tube that indicated signal strength of a station and in several models the dials were motorized. The most-sought-after model today was not the top of the line, though.
When did the Zenith Trans Oceanic radios come out?
Zenith’s Trans-Oceanic series shortwave radios were manufactured from 1942 through 1981. A typical Trans-Oceanic model was ac or battery powered. The earlier vacuum tube models could be run off a large heavy battery pack that was stored under the chassis.
If the leading number is 1 (IE 5S128) the radio was built for the 1937 model year. In our example of the 12S232, the radio was built for the 1938 model year. This scheme holds true for radios built through 1942, when Zenith halted civilian radio production to enter the war effort.
In our example of the 12S232, the radio was built for the 1938 model year. This scheme holds true for radios built through 1942, when Zenith halted civilian radio production to enter the war effort. Zenith did not produce radios for the general public again until late 1945, and were sold as 1946 models.
In 1938 Zenith released several models of 12-tube table radios with what Zenith referred to as their “Robot Dial.” The Zenith robot dial was equipped with a tuning eye tube that indicated signal strength of a station and in several models the dials were motorized. The most-sought-after model today was not the top of the line, though.
When did zenith stop making radios during World War 2?
This scheme holds true for radios built through 1942, when Zenith halted civilian radio production to enter the war effort. Zenith did not produce radios for the general public again until late 1945, and were sold as 1946 models.
