DIODE GE 30V 30MA 1N60 OA90 OA91 OA95 [OA90] - $1.00 : Zen Cart!
OA91_151199.PDF Datasheet Download --- IC-ON-LINE
Detector Diodes ~ crystalreceiver.co.uk
10pcs OA91A Germanium Diode, Point Contact Type, OA91, 0A91 560 : Amazon.ca: Musical Instruments, Stage & Studio
Peak Electronic Design Ltd 💙🇪🇺 on Twitter: "@KangaSales The OA91 is actually my favourite germanium diode (built my very first crystal set with one). I must have one somewhere here at Peaky