1970's Zenith Transoceanic Model 7000 Eleven Band FM AM Radio
This is a 1970's Zenith Transoceanic Model 7000 11 Band FM AM Radio Solid State AC/Battery Portable Radio. The radio covers a wide range of frequencies: VHF/LW/AM/FM/SW and is the last of these transoceanic-type radios manufactured in the US. The radio has a Beat Frequency Oscillator (BFO) for receiving CW and SSB. It also has a signal strength/battery condition meter. The radio has 11 bands and covers the following frequencies:
| VHF | Crystal Controlled at 162.55 MHz |
| FM | 88 to 108 MHz |
| LW | 0.15 to 0.4 MHz |
| BC | 0.54 to 1.6 MHz |
| SW1 | 1.6 to 3.5 MHz | SW2 | 3.5 to 9.0 MHz |
| 31 M | 9.4 to 10.1 MHz |
| 25 M | 11.4 to 12.3 MHz | 19M | 14.6 to 15.8 MHz |
| 16M | 16.1 to 18.5 MHz |
| 13M | 20.6 to 22.4 MHz |
The VHF band is designed to received the NOAA weather broadcasts. This version of the Zenith 7000 series of radios will receive only one channel of the NOAA weather broadcast frequencies. The crystal is permanently soldered in. The stamped part number on the crystal is #103-128. Using a frequency-modulated signal generator, the radio receives the signal at 162.23 MHz and is not very sensitive. I did not investigate the problem.
In the other version of the Zenith 7000 series that I have, a Zenith Model RD7000Y, the VHF weather band is tunable.
Below is a picture of the radio in its transport configuration.
Below are pictures of the chassis removed from the cabinet.
When I received the radio, the radio did play, but not well on the AM broadcast band. It seemed to have feedback suggesting the AGC filter capacitor was bad. I removed the radio from the cabinet, and when I powered it up, the audio had severe "motorboating." I turned out that both probems were associated with a bad ground for the black speaker wire. That wire is soldered to a terminal on a terminal strip and that connection to ground was intermittant. I soldered a wire from that terminal to another terminal that is also connected to ground. That modification is a green wire that can be seen left of center in the picture above.
You can read about my Zenith Transoceanic Model RD7000Y by clicking HERE