• Country
• United States of America (USA)

• Manufacturer / Brand
• Fansteel Products (Pfanstiehl, Pfansteihl, Balkite, Balkeit); Chicago

• Year
• 1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 235932

• • alternative name: Balkeit || First National
  • Brand: Overtone

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

• Number of Tubes
• 6

• Valves / Tubes
• UV201A UV201A UV201A UV201A UV201A UV201A

• Main principle
• TRF without regeneration

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: New Aladdin Treasure Chest - Fansteel Products Pfanstiehl,

• Shape
• Tablemodel, slant panel.

• Dimensions (WHD)
• 23 x 11 x 16 inch / 584 x 279 x 406 mm

• Notes

• The two capacitor-drive tuning dials are marked in wave lengths.  It is called the "Treasure Chest" model because it has brass handles on the side.  

  The output tube filament has a 4 Ohm resistor in series, producing a 1 Volt drop (.25 Amp for a 201A) to reduce the 6 V storage to 5 V filament. In case .5 Amp type shall be used, the series resistor can be paralleled with an other 4 Ohm. This is selectable by a jumper bridge on the chassis.

  The price listed is the suggested retail but the "street" price in catalogues is $54.00 (exclusive of speaker (US $15.25), tubes  (US $1.22/each), Batteries (B,C,and storage A) plus Trickle Charger (ca. $ 16.50) or power supply (US $35.70) and aerial (US $1.75).  Manufacturer's literature states:

  One stage transformer-coupled and two stages resistance-coupled audio section."

  The unit contains (see pictures) several of Carl Pfanstiel's recently patented innovations in radio design, including US Patent 1,614,151 (Radio Frequency Transformer), US Patent 1,477,185 (Dial Adjuster), US Patent 1,712,165 (Multiple Condensers), US Patent 1,670,782 (Radio Frequency Amplifier) and US Patent 1,701,244 (Support for Variable Condensers).

   

• Net weight (2.2 lb = 1 kg)
• 26.2 lb (26 lb 3.2 oz) / 11.895 kg

• Price in first year of sale
• 90.00 USD

• Mentioned in
• - - Manufacturers Literature (1926 Butler Brothers advertising page 447)

• Author
• Model page created by Hank Kaczmarski. See "Data change" for further contributors.

• Other Models

• Here you find 131 models, 74 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Fansteel Products (Pfanstiehl, Pfansteihl, Balkite, Balkeit); Chicago