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A Rare Siemens (?)/ Telefunken (?)/ Klangfilm (?) Ribbon Microphone. (circa 1931) | Martin Mitchell's Microphones
Siemens Vanderbilt SPCV310.000 Audio Satellit Mikrofon-Lautsprecher-Modul Mangel | Gebrauchte Geräte schonen Geldbeutel und Ressourcen
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