1 pc OA85 Germanium diode 115V 50mA. Black glass encapsuled Ø4.4x12 MM *Used* | eBay
File:Diode germanium OA85.JPG - Wikimedia Commons
General Purpose Germanium Diode Vintage Radio etc. OMA0068 | Rich Electronics
Microscopy of the interior of a 1970's type germanium diode type OA85 in glass body. Left is anode, right is catode. The semiconductor cell is on the cathode. Stock Photo | Adobe
Valvo OA85 Germanium General Purpose Diode 115 V 30mA Black Window Case ø4.4x12 mm (General Holt): Amazon.de: Business, Industry & Science
Peak Electronic Design Ltd 💙 on Twitter: "So even though the germanium OA85 diode starts conducting at very low voltages (that's why they make good "crystal set" detectors), its forward voltage soon