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Tested full 50 to 55ma. No shorts and tested in my valve amp as well. One has centre pin missing. Pickup from Poole or can post insured, email for a quote.
This is a buyer’s market for this category right now: at £350, the asking price sits just above the £312 median and well below the £1,431 75th percentile, so it reads as fair to slightly favourable rather than ambitious. It is not a bargain on the strict percentile rule, but it is comfortably within the normal used range and not priced at a stretch.
That makes it worth a close look if the item is genuinely in excellent condition. These are respected valves/outputs with strong demand from tube-amp owners, so a clean example can be an easy buy. The main upside is straightforward: if it tests well and has seen light use, you’re paying a sensible price for a coveted part that can be harder to source than generic NOS stock.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
GEC, the General Electric Company, traces its origins to 1886 in London, when German-Jewish immigrant Gustav Binswanger (later Byng) established an electrical goods wholesaler that evolved into the General Electric Apparatus Company. Joined by Hugo Hirst, the firm incorporated as a private limited company in 1889 and rapidly expanded, opening its landmark Witton Works factory near Birmingham in 1902. By the early 20th century, GEC had become a cornerstone of Britain's electrical industry, supplying everything from lamps and meters to wartime radios and searchlights, cementing its heritage as a pioneering industrial giant.
In audio and hi-fi, GEC focused on consumer electronics like radios under the Gecophone brand from 1922, later simplified to G.E.C. in 1930, and innovative metal cone loudspeakers introduced in the early 1950s. These alloy cone drivers represented cutting-edge technology, outperforming contemporaries in musical reproduction. The company also produced valve table receivers, such as the 1959 BC402 model, alongside broader electronics like televisions, though hi-fi components formed a niche within its vast portfolio.
Today, GEC holds a vintage-collector position in the hi-fi market, revered by enthusiasts for its mid-20th-century speakers and radios rather than modern high-end or mid-tier production. No longer active in contemporary audio manufacturing, its legacy appeals to niche buyers seeking rare, historically advanced pieces that capture Britain's postwar audio innovation.
See all GEC listings on RADAR.
