Firmware for the A9000 receiver, version V8.29, dated 26 October 2021, delivered as an 11.2 MB zip.

Datasheet in PDF form for the HEF4093B, a CMOS logic part from the HEF4000 family, best known as a quad two-input NAND gate with Schmitt-trigger inputs.

Covers the 2SD601A, an NPN bipolar transistor from the JIS 2SD series, in a 43.1 KB PDF file.

A small 33.3 KB PDF covering the 2SD330 transistor, listed as a schematic though it documents a single discrete part. The name carries no other details.

This datasheet PDF of 179 KB covers the 2SD2480 transistor and contains no further detail in its name.

Covering the 2SD1668, this 104 KB PDF is listed as a schematic, though the name is a discrete transistor code.

PDF sheet of about 42 KB for the 3N259, catalogued under schematics though the file name is simply a JEDEC part number.

Component sheet covering the 3N254, delivered as a 42.2 KB PDF and indexed as a schematic. JEDEC numbers beginning with 3N denote registered devices having four leads.

PDF for the 2SD1992A NPN transistor, indexed as a schematic though the name points to a part datasheet.

Component datasheet in PDF form, 57.8 KB, for the 2SD1478, though the index files it under schematics.

Covering the 2SK2507, this 422 KB PDF belongs to the JIS family of N-channel field-effect transistors denoted by the 2SK prefix.

The 2SK2152 is covered by this 93 KB PDF, listed as a schematic but named only by its part number, so it is most likely the transistor's datasheet.

A compact 32 KB PDF for the 2SK2130, indexed as a schematic yet named by part number only, which normally points to a short datasheet.

The 2SK1891 transistor is covered by this 96.0 KB PDF, which the index lists as a schematic.

Datasheet PDF for the 2SK1472 N-channel field-effect transistor, inferred from the Japanese 2SK designation, though the catalogue files it under schematics.

A 102 KB PDF covering the 2SK1437 semiconductor, catalogued as a schematic although the file name points to a single part rather than a circuit board.

Component datasheet in PDF, 86.7 KB, for the 2SK546, listed among schematics. Following JIS numbering, 2SK parts are N-channel FETs, so the document covers a single…

A small 31.5 KB PDF identified only by the part number 2SK374. Under JIS numbering the 2SK series covers N-channel FETs, so the content is almost certainly a short…

At 414 KB this is one of the larger PDFs in the 2SJ series, covering the 2SJ334. Only the part number appears in the name.

The 2SJ287 is covered in this 96.7 KB PDF. Only the part number is present in the name, so no equipment details can be given.

The 130 KB PDF titled 2SD1348 relates to a JIS-numbered NPN bipolar transistor, the 2SD series covering low-frequency types, and is expected to be a component datasheet…

Covering the 2SD1246, this 85.2 KB PDF is filed among schematics but its name is simply a JIS transistor number.

Covering the 2SD1193, this 135 KB PDF is indexed as a schematic but its name identifies a discrete component, so it is most likely the maker's datasheet.

A 103 KB PDF covering the 2SD1063, filed as a schematic although the name points to a single semiconductor rather than a device.

At 130 KB, this PDF documents the 2SD1060, the largest of its neighbouring files and filed as a schematic. Nothing beyond the part number appears in the name.

Covering the 2SD1047 without any suffix, this 125 KB PDF is filed under schematics but represents a single-component datasheet.

The 2SC5263 is covered by this 103 KB PDF, listed among schematics in the index. Following Japanese JIS numbering, 2SC marks an NPN bipolar transistor, and no variant…

This 234 KB PDF covers the 2SC4738F, indexed as a schematic though it concerns one transistor.

Covering the 2SC4612, this 155 KB PDF is indexed as a schematic but is in practice a transistor datasheet, as only the part number appears in the name.

The 2SC4404 is covered by this 114 KB PDF, placed under schematics in the catalogue. According to Japanese JIS numbering, 2SC parts are NPN bipolar transistors, so the…

A 195 KB PDF labelled with the transistor type 2SC4210. No device, board or manufacturer is named; the 2SC prefix simply tells us, through the Japanese JEITA system…

PDF of 336 KB covering the 2SC732TM, an NPN bipolar transistor of the Japanese 2SC family; the TM suffix appears in the name but is not explained.

Covering the 2SC5472, this 38.0 KB PDF carries an _E suffix that probably means an English edition.

The 2SC5404 is covered by this 319 KB PDF, which the index files as a schematic. The name carries only the transistor number.

A 41.5 KB PDF covering the 2SC4808, a part number in the JIS 2SC series used for NPN bipolar transistors.

Component sheet covering the 2SC3780, a JIS-designated NPN bipolar transistor, in a 126 KB PDF.

Covering the 2SC3775 NPN transistor, this 125 KB PDF belongs to a run of JIS-numbered 2SC part documents filed under schematics.

Small 46 KB PDF covering the 2SC5383, a part number in the JIS 2SC series used for NPN bipolar transistors.

PDF component sheet, 60.3 KB, covering the 2SC4920 NPN transistor from the JIS 2SC series.

For the 2SC5305? No: this 94.6 KB PDF covers the 2SC3705, an NPN bipolar transistor by its JIS designation, and is indexed under schematics.