- Country
- Great Britain (UK)
- Manufacturer / Brand
- Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB
- Year
- 1966
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 104751
An early example with 4 pirate radio stations marked on the dial. Same dial as RGD RR221
This particular example, (serial no. 1277/-04951) being an early one has 4 Pirate Stations marked on the dial, Caroline, R. 390, R. City, and R. London. Later examples (eg. serial number 1277/-17506) did not have the Pirate stations marked. The same dial can be seen on the RGD RR221
This later example does not have the Pirate stations marked on the dial, but it does have BBC 1, 2 and 3 marked on the dial.
Trader Sheet 1841
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- 7
- Main principle
- Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s)
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- Dry Batteries / 9 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
- Power out
- 0.4 W (unknown quality)
- from Radiomuseum.org
- Model: Cobra KR021 - Kolster Brandes Ltd. KB, K.B.,
- Shape
- Portable set > 8 inch (also usable without mains)
- Notes
- MW Tuning is split over 2 bands. Battery type PP7. Set also produced as RGD model "Rover" RR221.
- Price in first year of sale
- 13.31 UK £
- Circuit diagram reference
- Radio and TV Servicing books (R&TVS) book
- Mentioned in
- -- Original-techn. papers. (Date and price from Radio Radio, (Hill), page 260)
- Literature/Schematics (1)
- Trader Sheet 1841
- Author
- Model page created by Peter Hoddow. See "Data change" for further contributors.
- Other Models
Here you find 413 models, 370 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