The Perikon Detector
The "Perikon" uses two rather rare minerals;
Bornite in the fixed cup and Zincite in the movable section.
The Radiola I is an example of a receiver
uses this somewhat complex detector assembly. Most crystal
detectors have a "cat whisker" and a chunk of Germanium for the
fixed crystal. There is no cats whisker in the Perikon Detector,
just two minerals that make contact with each other. My research
found the Perikon Detector gives more volume than it's more common
counterpart using Galena and the cat whisker.
Other Radiola models that use the Perikon
< Manuals, labels & other paper for the above and other RCA Radiola models are available.