Balanstrap UN39
Amroh NV (Radio Bulletin monthly), Muiden
- Country
- Netherlands
- Manufacturer / Brand
- Amroh NV (Radio Bulletin monthly), Muiden
- Year
- 1955
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 135992
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 3
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Powered by external power supply or a main unit. / AC 6,3 & DC 250 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 4 W (unknown quality)
- Material
- Metal case, TUBES VISIBLE
- from Radiomuseum.org
- Model: Balanstrap UN39 - Amroh NV Radio Bulletin
- Shape
- Chassis only or for «building in»
- Notes
- Gegentakt-Endstufe zur Verbesserung von alten Röhren-Empfänger. Mit Amroh U70BN Ausgangstrafo Leistung max. 4 W bei 1000 Hz, Frequenzbereich 20 bis 20.000 Hz (± 2 dB). Spannungsverstärker und Phasendrehstufe mit ECC82, zwei EL42 Endröhren. Wurde gebaut auf "Uniframe" Chassis, deshalb Type-Nr "UN". Erstmals veröffentlicht in Elektronik-Zeitschrift Radio Bulletin, Jahrgang 1955.
- Mentioned in
- Radio Bulletin, Juli 1955
- Literature/Schematics (1)
- - - Manufacturers Literature (Ir.S.J.Hellings, "Het ontwerpen van versterkers", Bussum: De Muiderkring 1958, p.177-180.)
- Author
- Model page created by Aren van Waarde. 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