4-Watt Verstaerker UN-2A
Amroh NV (Radio Bulletin monthly), Muiden
- Country
- Netherlands
- Manufacturer / Brand
- Amroh NV (Radio Bulletin monthly), Muiden
- Year
- 1952
- Category
- Audio Amplifier or -mixer
- Radiomuseum.org ID
- 135450
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 127/220 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 4 W (max.)
- Material
- Metal case
- from Radiomuseum.org
- Model: 4-Watt Verstaerker UN-2A - Amroh NV Radio Bulletin
- Shape
- Chassis only or for «building in»
- Notes
-
Bauanleitung für Eintakt-Röhrenverstärker UN2-A, veröffentlicht in der Zeitschrift Radio Bulletin (November 1952) und in einem späteren Buch (1958), eine Ergänzung zum UN-2.
Die Buchstaben UN in der Modell-Type-Bezeichnung weisen auf die Benutzung eines "Uniframe"-Chassis hin.
Drei Eingangskanäle: Grammophon (Kristall-element, Sensitivität 800mV), Radio (1.6V) und Mikrofon (5 mV).
Zwei Klangregler (Höhen und Tiefen). Ausgangsleistung 2,25 Watt nominal, 4 Watt maximal.
- Source of data
- - - Manufacturers Literature
- Literature/Schematics (1)
- - - Manufacturers Literature (Ir.S.J.Hellings, "Het ontwerpen van versterkers", Bussum: De Muiderkring, 1958, p.112-115.)
- Literature/Schematics (2)
- Radio Bulletin November 1952
- 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