Note Magnifier (Two-Stage Amplifier) Unit No. 9
Marconi Scientific Instrument Co. LTD.,The; London
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Marconi Scientific Instrument Co. LTD.,The; London
- Year
- 1922
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 309458
- Number of Tubes
- 2
- Main principle
- Audio-Amplification; 2 AF stage(s)
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case, TUBES VISIBLE.
- from Radiomuseum.org
- Model: Note Magnifier Unit No. 9 - Marconi Scientific Instrument
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
-
Marconi Scientific Unit No. 9 Note Magnifier (two-Stage Audio Amplifier)
Two cascaded Unit No. 5 Note Magnifiers in a single cabinet.
- Mentioned in
- - - Manufacturers Literature (1922 Marconi Scientific Instrument Co. catalog)
- Author
- Model page created by Alan Larsen. See "Data change" for further contributors.
- Other Models
-
Here you find 36 models, 36 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Marconi Scientific Instrument Co. LTD.,The; London