• Country
• United States of America (USA)

• Manufacturer / Brand
• Spiegel Inc. (Continental); Chicago

• Year
• 1939 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 59810

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

• Number of Tubes
• 5

• Valves / Tubes
• 1A7GT 1N5GT 1H5GT 3Q5GT 70L7GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 117; AC;DC Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Air Castle Z-7126 Ch= 5N - Spiegel Inc. Continental;

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 13 x 9 x 7.5 inch / 330 x 229 x 191 mm

• Notes

• The Air Castle Z-7126 is an AC/DC/Battery operated 5 tube BC band receiver.  Cabinet is yellow fabric covered wood. Nameplate is "Air Castle."

  This model was manufactured for Spiegel by RPC (R.P.C.) Radio Products Corporation; Chicago, IL.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 02, 1939

• Other Models

• Here you find 1277 models, 550 with images and 1040 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Spiegel Inc. (Continental); Chicago