• Country
• Germany

• Manufacturer / Brand
• Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 14839

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

• Number of Tubes
• 5

• Valves / Tubes
• REN904 REN904 RES964 RES964 RGN2004

• Main principle
• TRF with regeneration; 3 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 7.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Schulverstärker RFW35 - Grassmann, Peter, RFW, Radio-

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 465 x 235 x 235 mm / 18.3 x 9.3 x 9.3 inch

• Notes
• Kraftendstufe kombiniert mit Spezial-Vorschaltempfänger. Ausgangs-Anschluß-Impedanzen: 5/10/140/1000/2500 Ohm.

• Net weight (2.2 lb = 1 kg)
• 17.4 kg / 38 lb 5.2 oz (38.326 lb)

• Price in first year of sale
• 430.00 RM

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

• Source of data
• HandB.d.d.Rundfunk-Handels 1936/37 / Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Mentioned in
• Historische Radios Band III (103)

• Other Models

• Here you find 110 models, 75 with images and 30 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grassmann, Peter, RFW, Radio-Funk-Werkstätten; vor 1945, Berlin & Neuhaldensleben