MINI-RADIO AVÁNDARO, 1 TRANSISTOR, early 70's, Hecho en Mé… | Flickr
OA70 PHILIPS Gold Bonded Germanium Diode
Halbleiter: OA70 (OA 70) - GERMANIUM DIODE...
Germanium diode oa65-oa70-oa85 | eBay
Halbleiter: OA70 (OA 70) - GERMANIUM DIODE...
i took a closer look at the germanium diode : electronics
OA79 Datasheet PDF ( Pinout ) - Germanium Diode
Germanium Diode ▷ 1.0£ | Dealsan
Germanium Diode Oa 70 | vintage gold bonded germanium diode oa9 for stompbox or radio detector 1 99 picclick, oa 79 germanium contact point high frequency diode early flickr, 2x tungsram oa1180