H. S. Norrie
Induction Coils, How to Make, Use, and Repair Them. Including Ruhmkorff, Tesla, and Medical Coils, Roentgen Radiography, Etc. Etc.
H. S. Norrie · 2017
Public domain, Project Gutenberg. No sign-up.
Induction coils
H. S. Norrie · 2017
Public domain, Project Gutenberg. No sign-up.