-40%
Semiconductor Black Tourmaline Crystal Radio Detector Diode Cast in Brass Cup
$ 5.28
- Description
- Size Guide
Description
If you enjoy evaluating alternative Minerals for Crystal Radio DetectorsSemiconductor Black Tourmaline Crystal Radio Diode Cast in Brass Cup
Experimental Semiconductor Crystal Radio Diode Cast in Brass Cup
Size, Color and shape may vary from pictures
Black Tourmaline
has
electrical characteristics possibly making it suitable for use as
a
Crystal Radio
detector
1 piece
Crystal
Black Tourmaline
Crystal mounted and Cast in a 13mm" Diameter brass cup
Casting alloy is made from Lead, Tin and Bismuth-Cadmium Free