History of the manufacturer
Interocean Radio Corp., Zenith Radio Corp
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Both will display your name after an officer has activated your content, and will be displayed under «Further details ...» plus the text also in the forum.
| Name: | Interocean Radio Corp., Zenith Radio Corp (USA) |
| Abbreviation: | interocean |
| History: |
Interocean Radio Corp.; - see also Zenith Radio Corp
|
Some models:
| Country | Year | Name | 1st Tube | Notes |
|---|---|---|---|---|
| USA | 39 | 202 | 2A7 | BC (530 - 1550 kHz) and SW (1550 - 14000 kHz) bands. |
| USA | 39 | 204 | 6E7 | |
| USA | 33 | Mantola 500 Ch= 2037 | 58 | Separate oscillator and AVC tubes. "Mantola" is the brand name of radios sold... |
| USA | 34 | 505 | 6A7 | |
| USA | 34 | 508 Ch= 508 | 58 | |
| USA | 34 | 511 Ch= 511 | 58 | Push-pull audio amplifier. |
| USA | 36 | 515 Ch= 2037 | 58 | Separate oscillator and AVC tubes. |
| USA | 36 | 516 Ch= 2037 | 58 | Separate oscillator and AVC tubes. |
| USA | 34 | 520 Ch= 2035 | 58 | Separate oscillator and AVC tubes. Push-pull audio amplifier, two speakers. |
| USA | 34 | 521 Ch= 2035 | 58 | Separate oscillator and AVC tubes. Push-pull audio amplifier, two speakers. |
| USA | 34 | 522 Ch= 508 | 58 | |
| USA | 34 | 524 Ch= 511 | 58 | Push-pull audio amplifier. |
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