Radiofrequenz EA 991
| manufacturer | Radiofrequenz GmbH, Berlin-Friedenau (later Loewe) | |
| type | EA 991 | |
| circuitry | audion with feedback, autoplex reception | |
| 1 HF - stage, 2 LF - stages | ||
| circuits | 2 circuits | |
| range | AM | |
| power supply | batteries | |
| cabinet | wood | |
| dimensions | 370 x 260 x 185 mm ( 14.6 x 10.2 x 7.3" ) | |
| introduced | 1924 - 1927 |
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