MRLŽ Handbook No. 3
Crystal
Detectors
(Printed on 100% acid free paper stock by Paul Nelson)
The data
in this handbook has been collected over a number of years and was almost
impossible to obtain. Much of the older information was kept secret by the
larger companies. Before the advent of tubes, a large number of minerals and
combinations of minerals were tried -
always looking for a better one.
The
number of chapters will give you an idea of the scope of this handbook. Under
each
heading we have attempted to give the chemical formula, common name,
description,
source and distribution, sensitivity, catwhisker type to be used, and any other
interesting
data for each.
The
"Quick Reference Chart" gives name, formula, class of chemical,
active element,
and if a battery may be used in series.
"Trade
Names" gives all we had on hand - and shows the duplicity of brands on the
market.
Contents:
1.
Crystallography 21. Iserine
2.
Anatase 22. Lead peroxide
3.
Anglesite 23. Molybdenite
4.
Antimony 24. Perikon
5. Antimony -
Aluminum 25. Pyrolusite
6.
Arsenic 26. Silicon
7.
Bornite 27. Silver telluride
8.
Boron
28. Sphalerite
9. Cadmium
sulphide
29. Tetrahedrite
10. Calcium
sulfide 30. Zincite
11.
Carborundum 31. Quick reference
chart
12.
Cerussite 32. Trade names
13.
Chalcocite 33. Crystal diodes
14.
Chalcopyrites 34. Transistors
15.
Cuprite 35. Mounting crystals
16.
Enargite 36. Formula vs.
color
17.
Ferro-silicon 37. Large vs. small
crystals
18.
Galena 38. Crystal
shapes
19.
Germanium 39. Poor contact
rectifiers
20. Iron
Pyrites 40. Sensitivity to light
waves
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