7-BX-10 The "Strato-World II" Ch= RC-1125B

• Country
• United States of America (USA)

• Manufacturer / Brand
• RCA (RCA Victor Co. Inc.); New York (NY)

• Year
• 1956/1957

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68930

• • alternative name: RCA Manufacturing || Victor Talking Machine

• Picture
• Schematics

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

• Number of Tubes
• 5

• Valves / Tubes
• 1U4 1L6 1U4 1U5 3V4 50A1

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 1 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Line / Batteries (any type) / Either AC: 25-60 cycles, 115V or DC: 115V or Batteries: 9V and 90 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• Power out
• 0.22 W (0.42 W max.)

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

• from Radiomuseum.org
• Model: 7-BX-10 The "Strato-World II" Ch= RC-1125B - RCA RCA Victor Co. Inc.; New

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

• Dimensions (WHD)
• 17.5 x 11.5 x 8 inch / 445 x 292 x 203 mm

• Notes

• The RCA 7-BX-10 Strato-World II is an AC/DC/Battery operated 5 tube portable BC and SW band receiver.  Has 6 SW bands.  The SW bands use a telescopic antenna.  A loop antenna is built into the lid of the radio, with this loop antenna having a plug that is inserted into the chassis.  An external antenna may be connected to the radio when using the internal loop antenna.  A ferrite rod antenna was also supplied with the radio and could be plugged into the chassis in place of the internal loop antenna. A headphone jack was provided which disconnected the speaker for private listening. Uses ballast tube 50A1 and also has a selenium rectifier.

  
  The band frequency tuning ranges are as follows:
  A: 540 - 1600 kHz,
  B: 2.0 - 4.0 MHz,
  C: 4.0 - 8.0 MHz,
  31 M: 9.45 - 9.85 MHz,
  25 M: 11.55 - 12.05 MHz,
  19 M: 14.90 - 15.50 MHz,
  16 M: 17.50 - 18.20 MHz;

  20 W power consumption, 230 V operation with optional RCA RK-186 convertor.

• Net weight (2.2 lb = 1 kg)
• 23 lb (23 lb 0 oz) / 10.442 kg

• External source of data
• Jeschkeit

• Circuit diagram reference
• Photofact Folder, Howard W. SAMS

• Mentioned in
• Eigenes

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 228, folder 14 dated 1-54)

• Literature/Schematics (2)
• - - Manufacturers Literature (RCA Service Data 1956 No. 9 Dated 5-1-56)

• Literature/Schematics (3)
• Photofact Folder, Howard W. SAMS (Set 334 Folder 1 dated 10-56)

• Other Models

• Here you find 5118 models, 3224 with images and 4148 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)