When I look at a photograph of ancient buildings, bridges, and other constructs that required years of planning and labor to complete, I think of how unfortunate it is that a history of drawings and/or paintings do not exist that document the construction process that went into it. Other than more contemporary renditions of what an artist thinks the sites of the Great Pyramids, the Parthenon, the Great Wall of China, etc., might have looked like as workers (often slaves) and engineers progressed throughout the projects, very few instances exist. I also wish to see the off-site manufacturing of columns and pillars, carved wooden and stone facades, stained glass windows and decorations, furniture, pottery, swords and cannons, and all the things that make up the entirety of the project. Let us also see renderings of the transportation of those components to the worksite. Once the photographic process was invented, we slowly but surely were treated to such documentation of construction history. It is nice to see the faces of the people who helped to build the modern world, and it would be nice to see those who built the ancient world. This advertisement by the Sangamo Electric company's factory is what I would like to see from the workshops of craftsmen of yore.
Sangamo Electric Company High Reliability Capacitors
Separate facilities are maintained for the exclusive processing and manufacture of high reliability capacitors. Only specially trained, highly skilled operators, who wear special clothing to prevent any possible source contamination, work here.
Oil-filled capacitors are subject to vacuum under elevated temperatures, then are individually examined to insure complete hermetic seal.
To produce capacitors free from any possibility of latent defects, for use in the most critical applications, the Sangamo Electric Company has recently intensified its high reliability program of fabrication and inspection methods.
Incoming materials are rigidly inspected to meet stringent high reliability standards and are stored in areas where temperature, humidity and dust are controlled at all times.
Complete production histories are kept on the basis of small capacitor lots. X-raying of individual units, heat tests, vibration tests, altitude tests, and total destruction tests of a given percentage of all finished units assure components with an extremely low AQL. Testing facilities and resultant performance characteristics are far in excess of military specifications. Specify these high reliability capacitors for your critical applications.
High temperature test ovens are used to check insulation resistance of Sangamo high reliability capacitors under sustained temperatures of 125° C.
This vibration testing machine brutally punishes Sangamo high reliability capacitors at accelerations up to 10 G's to determine their ability to resist vibration without damage to leads or elements.
Sangamo Electric Company
Posted May 30, 2019