Catalogued as a schematic, a 151 KB PDF for the 2N6487, carrying an RE suffix of unstated meaning. Parts numbered in the 2N series are JEDEC-registered discrete semiconductors, and files named this way are normally datasheets with ratings, electrical characteristics and package drawings. Use it to confirm which lead is which before soldering, to check limits when diagnosing a failure, and to compare candidate replacements. The collection also holds a shorter 2N6487 sheet that may come from a different manufacturer.
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.