BETA
RADAR is in beta — expect errors. Accuracy and coverage improvements are shipping daily.
LIVE
Waiting for new listings…
0 other audiophiles online
Telefunken S81 S 81 Stereo Auxiliary Amplifier AMP valve Tube Vintage Retro Prop
Telefunken S 81 7 views

Telefunken S81 S 81 Stereo Auxiliary Amplifier AMP valve Tube Vintage Retro Prop

USD$314 GBP$230
Location
GB
Seller
vintagevulture49
Source
eBay UK
Posted
18 Aug 2026
Last seen
2d ago

RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.

Our Thoughts RADAR AI

This looks like a fair ask, leaning slightly good value. At £230, it sits comfortably below the £310 median and a bit above the £211 lower quartile, so it’s not a steal, but it is clearly in the attractive part of the market.

The S 81 is a respected early Telefunken tube amp with real vintage appeal and a loyal following for its musical, characterful presentation. For a buyer, the upside is getting a collectible piece with strong brand cachet at a sensible price; just make sure it’s been serviced properly, because age-related parts drift matters more than cosmetics on an amp like this.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Telefunken

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.

See all Telefunken listings on RADAR.

More S 81 listings