Compact 39.7 KB PDF on the 2SB1370, indexed as a schematic though it documents one discrete device. In JIS nomenclature, 2SB marks a PNP transistor intended for low-frequency work, often found in power and audio stages. The file name gives nothing beyond the part number. Use it to check lead assignment, package outline and absolute maximum ratings before replacing a failed unit, and to judge whether a candidate substitute can handle the same collector current and dissipation.
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.