Introduction
Ever come across a vintage radio with the logo KB or Kolster-Brandes and wondered about its story? This British brand once stood tall in the world of mid-20th century electronics. Though the name has faded, its legacy lives on in collections, museums, and the memories of classic audio lovers.
The Early Roots: Brandes in Canada
The origin story begins in Toronto, Canada, in 1908, when the Brandes company was founded. Initially, the company specialized in radio accessories loudspeakers, headphones, and related components.
By the 1920s, Brandes had become part of AT&T, which gave it access to larger capital and technological development.
Frederick A. Kolster and the Radio Revolution
A key figure in the brand’s evolution was Frederick A. Kolster, a Swiss-born American electrical engineer. He made significant contributions to radio navigation and signal detection.
Kolster’s work at the U.S. National Bureau of Standards included innovations like the radio direction finder. Later, his approach to combining radio technology with consumer electronics would influence the creation of Kolster Radio Corporation in the U.S.
The joining of Kolster’s innovations with Brandes’ manufacturing capabilities laid the foundation for the name Kolster-Brandes.
Formation of Kolster-Brandes in Britain
In 1924, a British subsidiary Brandes Ltd was established in Slough to manufacture headphones and loudspeakers.
When Brandes in America merged with Kolster Radio Corporation, the British arm adopted the combined name Kolster-Brandes around 1928.
Production expanded rapidly, and by 1930, Kolster-Brandes had moved into a former silk mill in Foots Cray, Kent, where it increased its manufacturing capacity.
By 1931, the company was employing around 2,000 workers and producing up to 2,000 sets per day in peak periods.
Product Lines: Radios, Televisions, and More
Over the years, Kolster-Brandes built a diverse portfolio of consumer electronics.
Radios & Radiograms
Kolster-Brandes made a wide variety of radio sets, especially in the 1930s–1950s era. Models like the “Pup” were extraordinarily popular, with the Pup selling in large numbers.
Other notable radio models included the 285, 422 Cavalcade, 666, and CG20.
They also produced radiograms (combo radio + record player) under names like Playtime, Gaytime, Dancetime, Tunetime, and Rhythm.
Television Sets
In the 1950s and 1960s, Kolster-Brandes ventured into television production. One of their early sets was the “Queen” console television, which used around 20 valves and operated at 12 kV.
As television demand increased, KB moved into more advanced sets and eventually combined TV with other functions (e.g. radiograms with TV).
Amplifiers, Gramophones, Tape Recorders
Beyond radios and TVs, the company also manufactured amplifiers, tape recorders, gramophones, and other audio gear, supporting their audio ecosystem.
Conclusion
Kolster-Brandes once stood among Britain’s leading electronics manufacturers, offering radios, televisions, and audio equipment that combined innovation with accessibility. From coupon-based marketing to supplying ocean liners, KB built a storied reputation. Though the brand eventually dissolved into ITT, its legacy endures — in vintage collections, design retrospectives, and the heart of radio enthusiasts. Rediscovering a KB set isn’t just about owning a piece of hardware; it’s a journey into a golden era of radio and television craftsmanship.
FAQs
1. When was Kolster-Brandes founded?
The British arm evolved in 1924 (as Brandes Ltd), and adopted the Kolster-Brandes name around 1928.
2. Was Kolster-Brandes British or American?
It was British-registered and operated, but its origins stem from Brandes (Canada) and Kolster (USA), and it was ultimately part of the American ITT group.
3. What are some famous KB radio models?
Notable models include the Pup, 285, 666, Cavalcade 422, and the CG20.
4. Why did Kolster-Brandes fade away?
Competition, rising manufacturing costs, and absorption into ITT led to the phasing out of the KB brand by the early 1970s.
5. Are Kolster-Brandes units valuable today?
Yes — vintage KB radios and televisions in good condition are collectible. Their value depends on rarity, condition, and originality
