Ondolina 412 batteries
SBR Société Belge Radio-Electrique, Bruxelles
- Country
- Belgium
- Manufacturer / Brand
- SBR Société Belge Radio-Electrique, Bruxelles
- Year
- 1930
![perfect model](/img/sternRot.gif)
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 228703
- Number of Tubes
- 4
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown); Neutrodyne
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Storage and/or dry batteries / 4 & 120 & -15 Volt
- Loudspeaker
- Magnetic loudspeaker (reed) generic.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Ondolina 412 [batteries] - SBR Société Belge Radio-
- Shape
- Tablemodel, high profile (upright - NOT Cathedral nor decorative).
- Notes
-
- Internally, the radio is divided into 2 sections: the radio in the bottom half and the power supply in the top half of the housing.
- In case of the batteries version, the power supply section is left empty to make room for the (storage) batteries. This version has a control voltmeter with a push button on the left side for the filaments.
- The AC mains version has an "Oxymétal"1 rectifier. There is a rheostat, a push button and a voltmeter on the primary side of the mains transformer to compensate for voltage changes and a current regulator to keep the filament current constant.
- The DC mains 110V version and the DC mains 220V version have an internal resistor block to adjust to the mains voltage and a rheostat with a push button and a voltmeter to compensate for voltage changes; also a current regulator to keep the filament current constant.
- There is a tone control on the backside.
- There is an alternative tubeset from Dario: R81 , R76 , R76 , R77.
- All versions of this radio still need an internal 15V negative grid voltage battery ("C" battery).
- The soffit lamp on the back of the power supply is a current regulator.
1 "Oxymétal" (copper oxyd) rectifier.
- Price in first year of sale
- 2,250.00 BFr
- Author
- Model page created by Dirk Bladt. See "Data change" for further contributors.
- Other Models
-
Here you find 718 models, 666 with images and 391 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from SBR Société Belge Radio-Electrique, Bruxelles