Datasheet PDF for the KIA324P with an additional F suffix in the name, 321 KB, filed under schematics.

PCB artwork for the top side of an R2 class power amplifier rated around 500 watts into a 4 ohm load, saved as a 177 KB PDF.

Network and cellular RF section of the Samsung Galaxy A12 (SM-A12) schematic, 3.40 MB PDF.

Service manual for the Audio Pro B1.35 MK2 subwoofer, read from the B1_35MK2, sub and sm tokens in the name.

Datasheet for the 2N3055, filed here under schematics as a 39.8 KB PDF. The 2N3055 is a classic NPN silicon power transistor, usually in a TO-3 metal can, found in…

Schematic PDF for the JBL PartyBox 710 portable party speaker, delivered as a 13.5 MB RAR archive.

Class H power supply schematic, version 0.2, fuse type, marked final, in a 1.39 MB PDF.

Very small PDF schematic named only 4kw2, probably a second sheet or variant of a 4 kW power amplifier design, though the name gives no further detail.

Datasheet for the 2N5301 transistor, stored as a 252 KB PDF with an RE suffix whose meaning the name does not explain.

PDF bundle of Bose schematics, 1.53 MB in size, whose name lists no particular model, so the covered products must be confirmed by opening it.

Named only 2SC4365, this 148 KB PDF is filed with schematics but should contain the manufacturer datasheet for that transistor.

PDF schematic for an active subwoofer project designated PSW500, a 284 KB document credited to Rat Net, whose name describes it in Spanish as an active subwoofer.

PDF schematic labelled BCi with the year 2012, most likely an amplifier design from the same family as other BCi drawings, though the name itself states no power rating…

Top-side PCB print for a Matrix i4 amplifier rated 250 watts into 4 ohms, tagged langsung print, Indonesian for print directly.

Bottom copper layer of the R2 power amplifier PCB rated 1500 watts at 2 ohms, marked langsung print, Indonesian for direct print.

Final PCB artwork for an amplifier using Sanken output transistors, labelled 7 set, which likely indicates seven pairs of output devices, delivered as a large 7.42 MB…

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

Large 24.8 MB PDF schematic for the MHC-V83D, a high-power home audio system model name used by Sony, though no brand is given in the file data.

Service documentation for the Audio Pro Ace Bass B1-45 subwoofer, going by the sub and sm tags.

Schematic section for the LG G5 smartphone covering the network or RF part of the circuit, according to its title.

Datasheet for the LM358, revision 7, a 133 KB PDF. The LM358 is a widely used dual operational amplifier found in power supplies, chargers, audio stages and control…

Service schematic in PDF form for the Sony HT-S100F, a compact soundbar from the Sony home theatre line.

2.1 amplifier schematic using the 2SC5200 and 2SA1943 complementary power transistor pair, in a 184 KB PDF.

PDF document named TDA2824, a designation used for a dual low-voltage audio power amplifier IC.

The 2SD2129 transistor is documented in this 216 KB PDF datasheet, catalogued among schematics.

PDF schematic titled simply 4kw, most likely a high-power audio amplifier rated around 4 kilowatts.

Component PDF for the 3SK285, 22.2 KB, placed in the schematic section of the index. Only the part number is given.

Compact 42.7 KB PDF covering the 2SB1183 transistor. The JIS-style 2SB prefix identifies a PNP device designed mainly for low-frequency circuits, commonly found in power…

Component placement drawing for the Apex AX 20 amplifier board, a 61 KB PDF. It shows where each resistor, capacitor, transistor and connector sits on the PCB, which…

An 88.0 KB PDF for the 2SD1838, a Japanese-registered NPN bipolar transistor, best treated as a datasheet even though it is indexed as a schematic.

A 94.8 KB PDF documenting the 2SD895, indexed as a schematic though the name names a single transistor.

Datasheet PDF, about 180 KB, for the 2SB1481, filed in the schematic section of the index under its bare JIS part number.

Sony schematic for the MEX-BT5000 car stereo with Bluetooth, provided as a 6.75 MB PDF with no version indicated.

The file name gives nothing beyond 2SC3460, a Japanese JIS designation in which the 2SC prefix denotes an NPN bipolar transistor.

Covering the 2SA1837, this 173 KB PDF is listed as a schematic but is expected to be a transistor datasheet.

Schematic documentation for the HT-S100F soundbar, in PDF format of around 8.40 MB, a model designation used by Sony, though the name gives no revision.

The 466 KB PDF here is titled only 2SC4841, a Japanese JIS transistor code where 2SC stands for NPN.

Component sheet for the 2SA1940 transistor, provided as a 172 KB PDF and listed among schematics.

Yamaha PA 2400 amplifier schematic in a small 194 KB PDF. The name gives no revision or note about modifications, so it may represent the standard circuit, but confirm…

Datasheet for the 2SD612K transistor, a 303 KB PDF listed in the schematic section. The K at the end belongs to the type number and indicates a variant of the 2SD612…