Cobra KR021
Kolster Brandes Ltd.: Cobra KR021 [Radio] ID = 2286341 1200x884
Select picture or schematic to display from thumbnails on the right and click for download.
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| Year: 1966 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Semiconductors (the count is only for transistors) | 7: AF117 AF117 OC70 AC127 AC128 AC128 AC127 |
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| Main principle | Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s) |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast (MW) and Long Wave. |
| Details | |
| 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 |
Model page created by Peter Hoddow. See "Data change" for further contributors.
All listed radios etc. from Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB
Here you find 415 models, 368 with images and 253 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
Collection of a member from GB
