| Country: Germany | Manufacturer/Brand: Koch & Sterzel AG; Dresden |
| Year: 1928 / 1929 | Type: Radio or Tuner |
| Valves / Tubes | 4: REN1104 REN1104 REN1104 REN2204 |
|---|
| Principle | TRF without reaction (non reg.dir.receiver); 1 RF-stage(s); 2 AF-stage(s) |
|---|---|
| Tuned circuits | 2 AM circuit(s); |
| Wave bands | Broadcast (MW) and Long Wave. |
| Power type and voltage | Alternating Current supply (AC) |
| Loudspeaker/pwr.out | - For headphones or amp. |
| from Radiomuseum.org | Model: ER450W |
| Material | Wooden case |
| Notes | mit NA3 |
All listed radios etc. from Koch & Sterzel AG; Dresden
Here you find 73 models, 31 with images and 14 with schematics.