"Marmorblock" Type 104
Reisz, Eugen, Apparatebau; Berlin
- Country
- Germany
- Manufacturer / Brand
- Reisz, Eugen, Apparatebau; Berlin
- Year
- 1923
- Category
- Microphone or Pick-up element
- Radiomuseum.org ID
- 109620
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries / 12 Volt
- Loudspeaker
- - For headphones or amp.
- Material
- Various materials
- from Radiomuseum.org
- Model: "Marmorblock" Type 104 - Reisz, Eugen, Apparatebau;
- Shape
- Miscellaneous shapes - described under notes.
- Dimensions (WHD)
- 120 x 90 x 40 mm / 4.7 x 3.5 x 1.6 inch
- Notes
- Querstrom-Kohlemikrofon 250 Ohm, Empfindlichkeit 2 mV/µbar, Membranfläche 38cm². Betrieb mit dreistufigem widerstandsgekoppelten Vorverstärker mit Eingangsübertrager. Das langjährige Standardmikrofon des Rundfunks (Marmorblock).
"Für Besprechung über Drahtleitungen ausschließlich von der AEG vertrieben" (AEG-Mitteilungen September 1929).
- Mentioned in
- Lehmann: Die Rundfunktechnik (1930?)
- Literature/Schematics (1)
- AEG-Mitteilungen September 1929, S.602
- Author
- Model page created by Georg Richter. See "Data change" for further contributors.
- Other Models
-
Here you find 9 models, 9 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Reisz, Eugen, Apparatebau; Berlin
Collections
The model "Marmorblock" is part of the collections of the following members.