Tektronix began selling through distributors. They soon moved to direct sales through Tektronix Field Engineers in local Field Offices. The 1954 Tektronix Catalog identifies five Field Offices.

By the next year, the 1955 catalog identifies seven.

The network of Tektronix Field Offices soon grew world-wide. Warranty and out of warranty repair plus calibration was done in some Field Offices by a skilled group of factory trained Field Maintenance Engineers.

These pages from the 1981 Communication Directory lists 45 Field Offices in the US alone. Click on the image to view the PDF.

Here are some photos of various Field Offices and Service Centers