At 275 KB, this PDF for the 2N6050 is one of the larger sheets in the set. It is indexed as a schematic, though it is most likely a full datasheet with curves. The RE ending in the name is not explained. As a JEDEC 2N part it is a two-junction semiconductor. The document helps identify terminals and confirm ratings and package outline. It also lets you compare characteristics against a candidate replacement before installing it in a power or amplifier stage.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)