Vintage Fen-Tone B&O-50 / Bang & Olufsen BM3 Ribbon Microphone - Box & Papers For Sale

Up for sale is a stunning, vintage Fen-Tone B&O-50 Ribbon Microphone (the iconic Danish-made Bang & Olufsen BM3 variant imported for the US market).This microphone is in excellent, collector-grade cosmetic condition and comes complete with its rare original factory box, packing material, and the original \"Ten-Tone / Blue-Ribbon\" technical documentation booklet.Condition & Testing Details:Cosmetics: Near-mint physical appearance. The satin chrome body is incredibly clean with vibrant, intact labels and branding badges. Please see the high-resolution photos to appreciate how well-preserved this unit is.Transducer Integrity Check: While the microphone is being sold technically untested as I do not have the vintage cabling or a specialized preamp setup to run an audio pass, it passes a crucial physical check: there are absolutely no loose parts or internal rattling sounds when gently handled. The ribbon appears properly tensioned and isolated.Storage: This mic has been stored safely in its factory box in a climate-controlled, smoke-free environment.Note to Buyers: Because this is an authentic, highly sensitive vintage ribbon transducer, it is sold as-is/untested. Please ensure you do not apply modern +48V phantom power to this microphone when setting it up, as doing so can damage vintage ribbon elements.Ships promptly, securely packed, and fully insured. Please feel free to reach out with any questions!