• Country
• Netherlands

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

• Year
• 9999

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 13143

• Number of Tubes
• 2

• Valves / Tubes

• Wave bands
• - without

• Details
• Power: B-Battery Eliminator

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Dublette mit ID=7450 - Philips; Eindhoven tubes

• Notes
• 6 Anodenspannungen und 3 regulierbare Gitterspannungen. U_max: 200 V, I_{max: 50 mA.}

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

• Mentioned in
• Verbesserung des Radio-Empfanges

• Literature/Schematics (1)
• Molnár János: Anódpótlók, Budapest in 1929.

• Other Models

• Here you find 5233 models, 4365 with images and 3445 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt