The design and construction of a practical wireless telegraph station
A 1910 undergraduate engineering thesis by Robert Michael Spurck and Burton Cyrenius Job Wheatlake at the University of Illinois, describing how to build a working wireless telegraph station. The plates are hand-drawn circuit diagrams in ink on yellowed paper, with coiled inductances, spark gaps, batteries and lettered key legends, plus red dashed boxes marking transformers, useful as schematic line art and annotation.
