Chuck Miller was an instructor in Field Training. Early on Sales Engineers were expected to be able to fully support customers with both sales and service.  Sales Engineers were issued tool kits that consisted of the tools, transistors, and tubes needed for basic service. Here is Chuck's photo from the Employee Photo Album.

Training classes were held at the factory for six months of which half was devoted to troubleshooting techniques on the most popular products. These training tapes came later and were designed to be used in conjunction with the service manuals to learn troubleshooting.  Eventually the Concept Books were developed as part of the curriculum for Field Training.

7704A Circuit Description