Ombouwsuper Ratio III
Amroh NV (Radio Bulletin monthly), Muiden
- Country
- Netherlands
- Manufacturer / Brand
- Amroh NV (Radio Bulletin monthly), Muiden
- Year
- 1955
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 229514
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superheterodyne (common); ZF/IF 467.5 kHz; 2 AF stage(s)
- Tuned circuits
- 10 AM circuit(s)
- Wave bands
- Broadcast, Long Wave and Short Wave.
- Power type and voltage
- Alternating Current supply (AC) / 110; 127; 220 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 4.5 W (unknown quality)
- Material
- Metal case
- from Radiomuseum.org
- Model: Ombouwsuper Ratio III - Amroh NV Radio Bulletin
- Shape
- Chassis only or for «building in»
- Notes
-
Model Ratio III offers an update for the older Pin-up models MK4349 and MK4350, just like model MK4355. However, model Ratio III has a different tube set (rimlock) and includes a magic eye for accurate tuning.
- Mentioned in
- Radio Bulletin (November 1955)
- Author
- Model page created by Rob Majoor. See "Data change" for further contributors.
- Other Models
-
Here you find 240 models, 208 with images and 231 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Amroh NV (Radio Bulletin monthly), Muiden