Compact 48.1 KB PDF covering the 2N6107 discrete semiconductor, placed in the schematic category but most likely the component datasheet. The name carries nothing beyond the part number. A second, larger file for the same number exists, likely from another source or edition, and comparing the two can resolve unclear figures. Such sheets list pinout, package, ratings and characteristic curves. Use them to confirm terminal order and limits before testing, removing or substituting the part.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.