High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters
A 1920 technical manual by Thomas Stanley Curtis, published by Norman W. Henley in New York for electrical engineers, physicians, students and experimenters building high-frequency apparatus. Line engravings and hatched sectional drawings show spark gaps, coils, condensers and transformers, plus numbered cutaways and schematic wiring diagrams whose flat hatch textures and stark symbol vocabulary suit diagrammatic layouts and pattern work.
