Varactor reference for the 1SV245, saved as a 73.9 KB PDF whose name ends in an underscore that adds nothing. The index classifies it as a schematic, but the Toshiba 1SV numbering and the small size point to a single-device data sheet. Use it to confirm which pin is the cathode, look up the package marking and review the capacitance-voltage curve. That comparison is the key check when choosing an equivalent for an RF tuning stage. Any PDF viewer handles the file.
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.