Brimar / 6CH6/CV4055-BRIMAR

6CH6/CV4055-BRIMAR 6CH6/CV4055-BRIMAR Click on image(s) above to view larger

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Brimar was part of STC group and founded in 1933 to manufacture American pattern valves for the British market. Valves were produced in the UK in various locations such as Foots Cray. In 1960 Thorn Electrical Industries acquired the Brimar cathode ray tubes and valve business from STC and in 1961 Brimar became part of the joint venture between Thorn and AEI to manufacture and sell valves and cathode ray tubes. Brimar valves were produced and sourced from various factories across the world in later years.
The 6CH6 EL821 was used as the audio output valve in the Pye marine receiver AP100339 that was used by British navy. The CV4055 is a special quality version of this output valve that was used in the video output amplifier used to drive TV and radar.

The CV4055 was designed for extended life and is higher quality than the CV2127 and the commercial 6CH6 EL821.These are made in England by Brimar and have the early black anode plate

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