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Year: 1925 ? | Category: Loudspeaker, headphone or earphone |
Wave bands | - without |
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Details | |
Power type and voltage | No Power needed |
Loudspeaker | - Is a Headphone or Earphone |
Power out | |
from Radiomuseum.org | Model: Rfh 4 - Siemens; D S.& Halske / S. |
Material | Special material, described in the notes. |
Notes | Doppelkopfhörer, 2x 2300 Ω. Material: Metall und Pressstoff (Bakelit). Siehe auch Siemens Kopfhörer Rfh 2 mit 2x 2000 Ω. |
Net weight (2.2 lb = 1 kg) | 0.2 kg / 0 lb 7 oz (0.441 lb) |
Model page created by Siegmar Mey. See "Data change" for further contributors.
All listed radios etc. from Siemens; D (S.& Halske / S. Electrogeräte)
Here you find 2451 models, 2026 with images and 1274 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.