• Country
• Germany

• Manufacturer / Brand
• Brandt (Roland Brandt); Berlin

• Year
• 1928/1929

• Category
• RF (Radio Frequency-) Amplifier

• Radiomuseum.org ID
• 915

• • alternative name: Motorfahrzeug-Fabrik

• Number of Tubes
• 1

• Valves / Tubes

• Main principle
• Radio Frequency Amplification only

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: HF-Vorsatzgerät HV1 - Brandt Roland Brandt; Berlin

• Notes
• 3fach Spulenkoppler für Rückkopplung!

• Price in first year of sale
• 27.00 RM +

• Source of data
• Radio-Diehr, Berlin, 1928/1929 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• Radio Schnorr 1929

• Picture reference
• Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

• Other Models

• Here you find 237 models, 172 with images and 136 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brandt (Roland Brandt); Berlin