• Country
• Germany

• Manufacturer / Brand
• ITT Schaub-Lorenz

• Year
• 1976–1978

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 76186

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

• Number of Transistors
• 10

• Semiconductors
• CS9016 CS9018 CS9018 CS1312 CS9018 CS6305 2SB422 CS6305 2SB156 2SD352 1N34A 1N60

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 5 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)     7 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Dry Batteries / AA: 4 x 1,5 Volt

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

• Power out
• 0.4 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: JUNIOR 28 - ITT Schaub-Lorenz

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 164 x 105 x 47 mm / 6.5 x 4.1 x 1.9 inch

• Notes

• Gehäuse: Metallic oder teakfarbig.

  Frequency Range:

  • FM 87.5 - 104 MHz
  • MW 510 - 1605 kHz

  On the right-hand side: tuning and on/off – volume wheels. Rear, bands switch and headphone socket. Access to the battery compartment from the underside. 7-section telescopic antenna, 42 cm, swivelling, internal when not in use.
  Foster speaker, 9 × 6 cm, 8 Ω, 0.5 W, Singapore. Ferrite core 12 cm. 
  Metal handle, partially covered in plastic, with full travel.

  The Junior 28, Junior 28A and Junior 28B feature a dial with slight variations: only the first model bears the inscription ‘Schaub-Lorenz’ on the left; the third model, in addition to bearing the inscription ‘2-Band-Radio’ on the left, does not display the AM station indicators.

   

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Source of data
• Handbuch VDRG 1977/1978 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Handbuch VDRG 1976/1977

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Wolfgang Bauer. See "Data change" for further contributors.

• Other Models

• Here you find 779 models, 715 with images and 377 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ITT Schaub-Lorenz