1N34A Diode Datasheet pdf - Germanium Diode. Equivalent, Catalog
history of crystal diodes
China Germanium Point Contact Diodes (1N34A) - China Germanium Poinnt Contact, Contact Diodes
The classic 1N34A Ge Diode has a Vf of 1V... how could a diode with such a high Vf work in crystal sets they were packaged in? - Electrical Engineering Stack Exchange