Datasheet for the AD7523 from Analog Devices, an 8-bit multiplying DAC with current outputs, provided as a 178 KB PDF.

PDF document of 577 KB for the AD620, filed in the schematic category although a part-number name like this normally indicates a component datasheet.

Component datasheet covering the IRFP240 MOSFET, supplied as a 104 KB PDF readable in any PDF viewer.

Datasheet for the IRF510 N-channel MOSFET, a 97.7 KB PDF. The document should cover ratings, transfer and output characteristics, capacitances and the TO-220 pinout.

Listed as a schematic, this 246 KB PDF carries the name 2SJ201, a JIS part number for a P-channel FET, so it is best treated as a component datasheet.

Datasheet-style PDF covering the 2SD1199, catalogued under schematics, with an _E suffix in the name that the file does not explain.

A 58.1 KB PDF labelled as a schematic and named after the 2SC1215, an NPN transistor by Japanese JIS naming, so it should be the datasheet for that discrete part.

Another copy of the 2N5401 datasheet, a 49.2 KB PDF whose _3 suffix probably marks an alternate version or a third saved copy rather than a documented revision.

Datasheet PDF of 204 KB for the 2N3771, a JEDEC 2N-series transistor, catalogued in the schematic section.

Network RF section of the Samsung SM-A10 schematic, a 2.25 MB PDF. It follows the cellular radio chain from transceiver through power amplifiers, antenna switch and…

Schematic in PDF format for the Ahuja DXA 1802, about 1.63 MB, belonging to the Ahuja range of public address amplifiers.

Schematic collection for the Studiomaster PA series in a 2.65 MB PDF, apparently covering several models in that range, although the individual model numbers are not…

Printed circuit board layout for the subwoofer 7294 project, revision 1.1, as a 72.5 KB PDF.

Assembly drawing for the subwoofer 7294 amplifier, version 1.1, provided as a 138 KB PDF; montaz is Polish for assembly.

PCB layout for a Matrix amplifier rated 125 watts, labelled Beta 2008, as a 266 KB PDF.

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…

Merged PDF of application circuits for the STK41XX series, the Sanyo thick-film hybrid power amplifier modules used in many audio systems and mini components.

Archive named RC4559, 343 KB, with no brand listed. RC4559 is the part number of a dual operational amplifier, so the contents are most likely the datasheet for that IC…

Documentation for the Apple iMac A1150 M9 LIO audio board at PVT stage, drawing number 051-7066, packed into a 410 KB RAR.

A 281 KB PDF datasheet for the TL071, the low-noise JFET-input operational amplifier common in audio preamplifiers, mixers and measurement circuits.

Another copy of documentation for the 2SD1458 NPN transistor, stored as a 48.8 KB PDF under a lowercase file name.

The 2SC2982 is the only information this 147 KB PDF name provides; it is filed as a schematic.

Compact datasheet, 14.5 KB in PDF form, for the part numbered 2N2955 according to the file name.

Audio section of the Samsung SM-A20S schematic covering microphone, loudspeaker and earpiece circuits, a 4.63 MB PDF.

Samsung SM-A10 audio schematic covering microphone, speaker and earpiece, provided as a 2.25 MB PDF.

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

PDF schematic for the TV controller board TP.MS3663S.PB818, file size about 3.3 MB. The MS3663 part of the code points to the MStar SoC, and the TP.xxx.PBxxx naming is…

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

PDF circuit diagram of a mono tone control stage built around two transistors, as the name indicates.

Small PDF document for the STK412-150, a Sanyo hybrid power amplifier module used in many home audio systems and mini hi-fi units.

Word document of 497 KB, titled in Indonesian for a subwoofer circuit at 80 Hz. The file likely contains a filter or crossover design with a cutoff around 80 Hz for…

Number 22 of the Spanish series El mundo de la electronica, a 942 KB PDF that teaches electronics rather than documenting one device.

Analog Devices AD7541 datasheet, a 234 KB PDF for a 12-bit multiplying digital-to-analogue converter with parallel data inputs and current outputs.

Datasheet PDF, 312 KB, for the LM324 quad op amp, listed in the schematic category without a manufacturer in the name.

Datasheet-style PDF covering the TIP29 and TIP30 complementary power transistors, filed here under the schematic category.

Another reference for the IRF540 power MOSFET, provided as a 117 KB PDF and indexed as a schematic despite being named a datasheet.

Network and RF section schematic for the Samsung SM-A23, a 2.78 MB PDF from a series of per-function sheets.

Cellular network section schematic for the Samsung SM-A22 5G, a 5.26 MB PDF. It covers the RF chain, including transceiver, power amplifiers, antenna switches and the…

Audio section of the Samsung Galaxy A02s (SM-A02S) schematic in PDF, covering microphone, loudspeaker and earpiece circuits, at 1.79 MB, smaller than the other pages in…

PCB document named VDBL Multi, a 4.16 MB PDF that likely holds layouts for several board variants of a VDBL style amplifier design, as the multi tag suggests.