• Country
• Great Britain (UK)

• Manufacturer / Brand
• Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB

• Year
• 1959–1961

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 104761

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

• Number of Transistors
• 6

• Semiconductors
• TK1000C TK1000C TK1000C GET114 GET114 GET114

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Dry Batteries / 2 × 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Power out
• 0.7 W (unknown quality)

• from Radiomuseum.org
• Model: Starlight Rhapsody OP21/1 - Kolster Brandes Ltd. KB, K.B.,

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

• Dimensions (WHD)
• 240 x 170 x 80 mm / 9.4 x 6.7 x 3.1 inch

• Notes

• Improved version of OP21, car aerial socket fitted, different batteries. Same chassis as PP31/1. Mullard OC81s may be fitted instead of the GET114 transistors.

  Another configuration employs STC transistors in the RF and IF stages marked thus: MIXER / IF / IF,  while GEC transistors are used in the audio stages marked: GET114, GET114, GET114.

  KB Service note;
  The model OP21/1 can be identified by its 5/8th" diameter Ferrite rod. The tuning condenser spindle is hexagonal.

• Price in first year of sale
• 20.00 GBP

• Circuit diagram reference
• Radio and TV Servicing books (R&TVS) book

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• ERT Sheet 1273.

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 415 models, 372 with images and 253 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB