PDF reference sheet for the 2sb1236 transistor, 52.0 KB. The file name carries the part number only, with no further detail. By Japanese JIS convention, 2SB parts are PNP low-frequency bipolar transistors, commonly found in power supply, regulator and audio stages. The document should list electrical characteristics, maximum ratings and the package drawing with pin numbering. Use it when testing a suspect transistor or choosing a replacement, and double-check that the lead layout of any equivalent matches the original.
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.