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Telefunken 12AU7/ECC82 Red Tipped Valves/Tubes Telefunken ECC82/12AU7 Red Tipped matched pair. Tested by Ian at Speaker Hospital last week. Tested very strong (almost NOS). These are premium medical grade Telefunken tubes with a red tip. Quite worn writing as usually found on these tubes. Diamond imprint on the bottom, red tip, O-getter, 60's production. Excellent sounding tubes with large soundstage, very dynamic, neutral presentation. Check this link to Brent Jesse's website for more info and pricing (in US$): http://www.audiotubes.com/12au7.htm Can ship at cost. Condition: Excellent Payme
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Telefunken stands as one of Europe's most storied audio brands, founded on May 27, 1903, as a joint venture between German industrial giants Siemens and AEG. Created at Kaiser Wilhelm II's direction to consolidate wireless telegraphy expertise, the company quickly became the continent's dominant force in radio and electronic communications. The Telefunken name itself derives from "tele" (telegraphy) and "funken" (sparks), reflected in the brand's iconic lightning-bolt logo. By the mid-twentieth century, Telefunken had established itself across multiple continents, with its radio equipment and vacuum-tube receivers earning widespread recognition for quality throughout non-communist Europe.
The brand's product heritage centers on vacuum-tube microphones and audio components, particularly its legendary studio recording equipment developed during the golden age of analog recording. Telefunken became synonymous with premium vacuum-tube technology, and its vintage microphones—especially the ELA M 251—remain highly sought after by professional recording engineers and collectors. The company also manufactured semiconductors, computers, and consumer electronics through the mid-twentieth century, though these divisions eventually declined as Japanese competition intensified during the 1960s and 1970s.
Today's Telefunken operates as a niche boutique brand focused on preserving and recreating its analog legacy. Telefunken Elektroakustik, established in 2001 in Connecticut, specializes in historically accurate reproductions of vintage vacuum-tube microphones and has expanded into modern designs that blend classic sonic characteristics with contemporary manufacturing. The brand occupies the high-end professional and audiophile segment, commanding premium prices justified by meticulous craftsmanship and deep historical authenticity. For discerning listeners and recording professionals, Telefunken represents both tangible connection to audio's golden era and continued commitment to analog excellence.
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