The radio powers on and plays great! I was able to tune in several stations here in central Indiana. The Bakelite cabinet looks great no chips, cracks, etc.
There are a few minor scrapes, etc. Like you might expect on a piece from this era. All of the knobs/dials seem to be working as they should be.The radio had been in storage for many years so I'm sure that it could use a good/thorough cleaning. This radio measures approximately 15" by 8 1/2" by 8 3/4. Please check out my other auctions as I have many other vintage radios for sale! So why is the 7H820 so much more desirable than the other Zenith models from the 1940's, especially those like the 7H820Z and 7H920 that look almost exactly like it? To be designed with a. Large speaker with the signature tone control or tuning dial in the middle, a design that started a trend for the next decade.
It was the first Zenith to use the. Smaller "miniature tubes" that would soon become the mainstay of vacuum tube electronics. The first Zenith model to use a.Solid-state component (a selenium rectifier). T he most fascinating aspect of this radio is that it is one of very few radios designed to tune both the original and the modern FM broadcast band. Between 1941 and 1948, the original FM broadcast band in the USA was.
A network of hundreds of stations developed by Edwin Armstrong. But in 1948, RCA (invested in television) successfully pressured the Federal Communication Commission to re-allocate the FM45 frequency band to make way for television broadcasting, and FM Radio was forced to move to. 88-108 MHz ("FM100"), the FM band we're familiar with today. Hile the FCC was still deciding whether to give RCA the 42-50 MHz frequencies for TV broadcasting, radio manufacturers didn't know what to do, and a few rare models like this radio made during that "limbo period" have both the old and new FM bands.
N late 1948, the FCC decided to put TV Channel 1 on 42-50 MHz, but 2 years later, took it back from TV again, and reassigned the frequencies for other uses (this is why TV's after 1950 start at Channel 2, and not 1). Today, you can still hear other things on the FM45 frequency band with this radio - your baby monitor, intercoms, walkie-talkies, and in many jurisdictions, Highway Patrol radio communications, taxis, and private companies' 2-way communications. The item "BEAUTIFUL Working VTG (1948) Zenith 7H820 Bakelite Tube Radio Dual-Band FM" is in sale since Tuesday, November 17, 2015.
This item is in the category "Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1930-49". The seller is "purplepacman" and is located in Pittsboro, Indiana. This item can be shipped worldwide.