Box 606740662
Container
Contains 1 Result:
File
HIS 193, HIS 194, Date not recorded at time of cataloguing
Comprises files:
HIS 193: Technical - coherer, induction coil, magnetic detector, spark transmitter and other early equipments.
HIS 194: The thermionic valve, 1934-73
Collection:
The Marconi Archives
Found in:
Archives of the Wireless Telegraph a…
/
Records relating to the company's history
/
Papers from company historian's 'His…
Shelfmark: MS. Marconi 1812
Extents: 1 box
Dates:
Date not recorded at time of cataloguing