• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1928/1929

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 7441

• Number of Tubes
• 1

• Valves / Tubes
• 506

• Wave bands
• - without

• Details
• Power: B-Battery Eliminator

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite, TUBES VISIBLE

• from Radiomuseum.org
• Model: Anodenspannungsapparat 3001 - Philips; Eindhoven tubes

• Notes
• Wechselstrom-Netzanode für 4 Andodenspannungen

• Price in first year of sale
• 93.00 RM

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

• Other Models

• Here you find 5250 models, 4394 with images and 3450 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt