Catalogue
367 of 655 records previous / next
Early Coherer, c. 1902
Inventory Number: 62930
Date: c. 1902
Maker Details: Unknown
Inscription: None
Size: 80 mm in overall length
Materials: Glass, elastic, copper?, steel, assorted metals.
Notes:
Early Coherer, made between 1899 and 1905. Basic coherer in cylindrical glass tubes, main tube is of thermometer tube-type style with smaller tube attached with elastic wire wrapping. With copper? wire wrapped around middle of longer tube, and steel wire exiting from both ends of smaller tube.
367 of 655 records previous / next
Record mode: Basic | Medium Images | Large Images | Documents (1)