An engineer from Bodø and a radio factory in Oslo.

Tandberg began in Oslo on 25 January 1933, when Vebjørn Tandberg, an engineer from Bodø in northern Norway, started Tandbergs Radiofabrikk — Tandberg’s radio factory — according to the Norsk Teknisk Museum, Norway’s museum of science and technology. It opened in the same year as the national broadcaster NRK — supplying radios to households and equipment to NRK was the basis of the business, the museum says.

The factory started with three employees at Kongens gate 15 and moved into the new Folkets Hus on Schleppegrells gate, in the Grünerløkka district — in its first year, the museum says, or in 1936, according to Norwegian Wikipedia. In 1951 it moved into a purpose-built factory at Kjelsås, on the northern edge of the city. Unusually, the company did not belong to its founder: Norwegian Wikipedia, citing a 1995 biography by Helmer Dahl and Arnljot Strømme Svendsen, says ownership passed in 1939 to a foundation, Tandbergs Radiofabrikks Fond, which held 4,998 of the 5,000 shares when the business became a joint-stock company at the end of the war.

Its radios carried names rather than numbers. The Huldra — the name of a figure from Norwegian folklore — was made, in successive versions, from 1934 to 1983, and the Sølvsuper, or “silver super,” from 1936 to 1977, according to Norwegian Wikipedia. Around 1950, the museum says, radio sales began to slow, and the company bet on a high-quality tape recorder for the home, so that families could record their favourite programmes. The first went on sale in 1952, and the Norwegian Radio Historical Society says 4,000 were sold that year; stereo machines followed, and were exported, from 1957.

Tape, television and the Cabinet Room.

Tandberg tape recorders found their way into unexpected places. In the summer of 1962, according to the Miller Center’s edition of John F. Kennedy’s presidential recordings, the president asked a Secret Service agent, Robert Bouck, to hide recording devices in the Cabinet Room, the Oval Office and a study in the White House residence; Bouck “obtained Tandberg reel-to-reel tape recorders, high-quality machines for the period, from the U.S. Army Signal Corps.”

The company’s products are also held as design. Norway’s Nasjonalmuseet lists a Huldra 4 cabinet radio of 1954, designed in 1950 by Rastad & Relling; a Model 6 of about 1960 and the TTR-1 of 1963 by Asbjørn Ollestad; the Fasett series of 1973 and 1975 and the TCD 300 cassette deck of 1972 by Terje Ekstrøm; and the Sølvsuper 12 of 1976, in aluminium and rosewood, credited to both men.

Television made the company large. Tandberg launched its first set in 1958, the museum says — English Wikipedia dates television production at Kjelsås to 1960, the year NRK began regular broadcasts — and colour sets were developed after 1970. New factories followed, including a colour-television plant in Scotland in 1975. At its peak in 1976 Tandberg had more than 3,000 employees at seven production sites in several countries, the museum says; Norwegian Wikipedia gives about 3,100 and English Wikipedia 3,500.

It was not profitable. The museum says television was particularly hard to make pay against European and Asian competition. In 1972 Tandberg merged with Radionette, Norway’s other large radio and television maker, founded by Jan Wessel in 1927 — under pressure from the industry minister, Finn Lied, Norwegian Wikipedia says. The merged group lost money from 1976, despite state loans. Vebjørn Tandberg had stepped down in 1974. In August 1978, after the new board told him to move out of the company’s villa and to stay away from the factory, he took his own life, the museum says. On 14 December 1978 the company was declared bankrupt, according to the Norwegian Radio Historical Society. After ten years the estate was settled with a surplus — which, the museum says, many took to mean the bankruptcy had been unnecessary.

What became of the names.

In the decades after the Second World War, Europe’s radio, television and hi-fi makers were household names. By the 1970s several were losing money. Norwegian Wikipedia says Tandberg faced strong competition from Japanese and other Asian producers and made losses from 1976; German Wikipedia ties Dual’s decline to Japanese competition, and English Wikipedia describes Far East competition in Lenco’s.

Some names were absorbed by larger groups. The French Thomson group took over SABA in 1980, after GTE left consumer electronics, then Dual in 1982 and Telefunken’s television and radio business in 1983–84. Philips took a 31.6 per cent stake in Grundig, with management control, in 1984.

Others failed. Lenco went bankrupt at the end of the 1970s, Tandberg in December 1978 and Dual in 1981; Grundig filed for insolvency in April 2003. Studer, a maker of studio equipment, took another path: Willi Studer sold it in 1990, and it passed to Harman in 1994.

Many of the names lived on as brands rather than factories. Grundig belongs to Turkey’s Arçelik; the Telefunken brand, licensed through Telefunken Licenses GmbH in Frankfurt, was bought by Gordon Brothers in 2023; SABA is a licensing brand of Talisman Brands; the Dual name in Europe belongs to Dual GmbH of Fuchstal, in Bavaria; Lenco to the Dutch Commaxx group; Studer to Canada’s Evertz; and the Tandberg video-conferencing company to Cisco.

This guide sets out what can be checked about each brand — who founded it, who owns it, and what it says about where its products are made — and marks clearly what rests only on the company’s own word.

One name, several companies.

Radio and television production ended with the bankruptcy, but the name did not. The data division, set up in 1970, continued as Tandberg Data, established in 1979 by Siemens, with 51 per cent, and the Norwegian state, according to English Wikipedia. It made computer terminals and tape drives at Kjelsås until 2007, the museum says; it went bankrupt in 2009, was refinanced with Cyrus Capital as majority owner, and was bought by the American Overland Storage in 2014; English Wikipedia says insolvency proceedings were opened for its last German company, in Dortmund, in January 2025.

A second company, Tandberg ASA, was formed in 1979 by acquiring Tandberg Industrier, which held the remaining operations, Norwegian Wikipedia says. In 1984 it split off its stereo business as Tandberg Audio — which went bankrupt in 1988, according to English Wikipedia — and its broadcast division as Tandberg Television. Tandberg ASA turned to video-conferencing, with an ISDN picture telephone around 1989. Cisco bought it, completing the deal in April 2010 for about $3.4 billion, English Wikipedia says. Tandberg Television went separately to Ericsson, which announced its NOK 106-a-share offer in February 2007, outbidding the American company Arris; Ericsson phased out the Tandberg Television name in January 2010, Multichannel News reported.

The consumer name has come back in smaller ways. In June 2008 VG reported that Tandberg televisions would return after 30 years, starting with an LCD set called ErgoClass after earlier models; we could not establish how long that venture lasted. Today tandberg.no and tandberg.com redirect to a Cisco page. The original company made its products chiefly in Norway, in and around Oslo and at Notodden, with a colour-television plant in Scotland; no Tandberg-branded factory is documented today.

For a design guide, Tandberg shows how one founder’s name can end up on several unrelated businesses. Compare Bang & Olufsen, a Scandinavian contemporary that stayed independent, and Revox, another tape-recorder name. For this guide we use rosewood, aluminium and cream with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Tandberg’s identity on hand — save it to a board in the Made Good inspiration library.