Named 2SD1934 with an _E suffix, this 40.2 KB PDF is most likely the datasheet for that NPN transistor, since 2SD is the JIS prefix for NPN low-frequency types.

The 42.4 KB PDF is named for the 2SD2345 and carries an _E suffix, whose meaning the name does not explain.

A 136 KB PDF for the 2SK2887, with a 1-5 suffix in the name that most likely refers to page range or a document section, though this is not certain.

Second copy of documentation for the 2SK2887, a 139 KB PDF listed under schematics, with the part number written in lower case and no other information in the name.

PDF datasheet, 411 KB, for the 2SK2847, placed in the schematic category of the index. Only the part number is given in the name, with no maker or revision.

PDF for the 2SK2299N, 137 KB, carrying an extra _1-5 suffix in the name whose meaning is not stated; it may mark an alternate edition or page range.

Catalogued as a schematic, this 86 KB PDF is named only after the part number 2SK2273, so it is almost certainly a component datasheet, not a board diagram.

Datasheet-style PDF, 379 KB, for the 2SK1486 N-channel FET, going by the Japanese 2SK type prefix in the file name.

Component documentation for the 2SK1475, a JIS-style part number whose 2SK prefix identifies an N-channel FET.

Datasheet-style document for the 2SJ227, stored as an 85.3 KB PDF and indexed in the schematic category.

Compact 32.0 KB PDF for the 2SC4747, categorized as a schematic in this index. The part number follows the JIS convention, in which 2SC denotes an NPN bipolar…

Datasheet-style PDF of 88.9 KB for the 2SC4361, listed in the schematic category although the file name holds nothing but the part number.

The 2SC5588 is covered by this 332 KB PDF document. Apart from the part number the name gives no detail, so maker and revision are unknown until the file is opened.

Filed as a schematic, this compact 79.7 KB PDF is named for the 2SC4169, a JIS-style designation that belongs to an NPN bipolar transistor, so the content is most…

A small 37.1 KB PDF named in lowercase after the 2SC4137, labelled as a schematic but most plausibly a concise datasheet for that part.

Datasheet-style document for the 2SC5405, stored as a 37.3 KB PDF in the schematic category. Nothing beyond the part number appears in the name.

Very small at 26.8 KB, this PDF is identified only as 2SC4826, a JIS transistor code in which 2SC marks an NPN type.

PDF reference sheet for the 2SC3184, filed in the index as a schematic but named after a single part number in the Japanese JIS scheme.

The 2SC3153 is the subject of this 98.0 KB PDF, catalogued as a schematic though the name points to a discrete-part data sheet.

Small 40.7 KB PDF named 2SC2925 with an added _E suffix, classified here as a schematic.

Part number 2SC2851 with an _E suffix names this 48.7 KB PDF, listed as a schematic. The 2SC prefix follows JIS numbering for NPN bipolar transistors, so a datasheet is…

Compact 57.8 KB PDF named after the 2SC2206, with an _E suffix in the file name whose meaning is not stated.

The 2SC1359 named in this 55.6 KB PDF is, by its 2SC prefix, a Japanese-standard NPN bipolar transistor, so despite the schematic label the document should be a…

Although catalogued as a schematic, this 51.4 KB PDF is named for the 2SC1317, which the JIS 2SC prefix identifies as an NPN bipolar transistor, so a component datasheet…

A PDF document for the 2SA1604, an 84 KB file listed in the index as a schematic but named after a single discrete part rather than a board.

PDF of 97.5 KB covering the 2SA1729, a component listed in this index as a schematic although the name describes a single part.

Component sheet for the 2SA1723, an 80.1 KB PDF. The name holds only the part number, so no equipment model or board revision can be attached to it.

Part reference for the 2SA1708, saved as a 154 KB PDF. No device, brand or board number is present in the name, only the component designation.

Short 41.2 KB PDF for the 2SA838, with an _E suffix that may indicate an English edition of the datasheet, although the name alone cannot confirm this.

PDF of 34.7 KB for the 2SA821S, one of the smallest documents in this group, with only the part number in its name.

Small PDF of 46.9 KB filed as a schematic and named for 2N1711, a JEDEC-numbered discrete semiconductor designation.

A PDF of about 155 KB for the JEDEC part number 2N6338, filed under schematics but almost certainly a component datasheet.

PDF document for the 2N3791 part, filed under schematics but by its name a component datasheet for a JEDEC 2N-series transistor; the RE suffix in the name is not…

Datasheet in PDF form covering the 2N3773, catalogued as a schematic though the name points to a single-part reference for a 2N-numbered transistor.

Preamplifier schematic, the file name being the Romanian word for preamp, delivered as a 574 KB PDF with no model or brand stated.

Schematic for the PMA400 Lambda amplifier, a 400 W audio power amp design credited to Rat Net, supplied as a 477 KB PDF.

Audio Pro Ace Bass A101 service manual, with the int tag suggesting an integrated amplifier, though the name does not state this firmly.

ROHM datasheet for the RSS090N03 component, a 57.4 KB PDF. The N in the part code suggests an N-channel MOSFET, though the name itself gives no further detail.

Datasheet for the 2N2222, the long-established general-purpose NPN switching transistor, as a 79.5 KB PDF.

Reference sheet in PDF for the RJH60F7, an IGBT the file name rates at 50 A and 600 V. Devices of this type turn up in induction heating appliances, inverter welders and…