• Country
• Germany

• Manufacturer / Brand
• Kramolin; München und Berlin (AG bis 1925, dann & Co. GmbH)

• Year
• 1927–1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 15503

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 2

• Valves / Tubes
• VT126_TKD VT126_TKD

• Main principle
• TRF with regeneration; 1 Special; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Storage and/or dry batteries / 4 & 20-50 & 90-100 & -2 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Pentatron RDV39 - Kramolin; München und Berlin

• Notes
• Quetschfoliendrehko

• Price in first year of sale
• 112.00 RM

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Katalog Radio-Zentrale Prohaska 1928 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Katalog Prohaska 1928/29

• Other Models

• Here you find 46 models, 38 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kramolin; München und Berlin (AG bis 1925, dann & Co. GmbH)