PDF for the complementary TIP3055 NPN and TIP2955 PNP power transistors, 50.1 KB, indexed under schematics.

Stored as a 190 KB PDF, this document is named after the 2SD1936, a JIS-registered NPN transistor.

The 2SK1375 N-channel field-effect transistor is covered by this 150 KB PDF, filed under schematics in the catalogue.

Sony SA-WGT5D schematic in PDF format, 15.9 MB in size. The name gives only the model, which follows Sony's SA- prefix for speakers and subwoofer units, so open the…

Sheet metal drawing for the subwoofer 7294 project, version 1.1, a small 23.7 KB PDF; blacha is Polish for sheet metal.

Soft start circuit schematic, saved as a 1.78 MB PDF; the note in the name indicates it was converted from another format.

Schematic sheet in PDF format called RF1, 292 KB, whose name gives no device, manufacturer or board number.

Datasheet document for the 2SK1103 transistor, filed as a 29.5 KB PDF. Parts beginning with 2SK are N-channel field-effect transistors registered under the JIS scheme…

PDF datasheet of 73.0 KB for the 2N2906 transistor, stored in the schematic section of the index.

Cellular network section of the Samsung SM-A11 schematic, saved as a 4.33 MB PDF. It covers the RF transceiver area, power amplifiers, antenna switches, filters and the…

Cellular network section of the Samsung Galaxy A02s (SM-A02S) schematic in PDF format, 3.70 MB.

Regulated power supply for a preamplifier, drawn in a 601 KB PDF schematic with a source tag in the name.

PDF table of Linear Technology marking codes, intended for identifying LT parts from the abbreviated top marks printed on small packages.

Datasheet for the L298, a dual full-bridge driver from ST used to run DC motors, relays and stepper motors at up to several amperes total.

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.

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 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…

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

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

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.

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

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…

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.

Service schematic for the Audio Pro A2, supplied as a 542 KB PDF; the int-sm suffix most likely marks an international service manual edition.

Datasheet PDF, 64.6 KB, for the KA7500B, a PWM control IC from the KA7500 series and a TL494-style design widely found in computer power supplies.

The 2SD2285 is documented in this 128 KB PDF. Its JIS part number, with the 2SD prefix, places it among NPN transistors intended for low-frequency circuits such as…

The name of this 97.3 KB PDF gives nothing beyond 2SJ277, a JIS-style designation in which 2SJ marks a P-channel FET.

Only the part number 2SJ275 appears in the name of this 97.0 KB PDF. That code follows Japanese JIS numbering, where 2SJ indicates a P-channel field-effect transistor…

Network section schematic for the Samsung SM-A21s, a smaller 1.93 MB PDF. It covers the cellular radio part of the board, typically the RF transceiver, power amplifiers…

Audio Pro Ace Bass B2-40 subwoofer service manual in PDF form, about 1.96 MB, as indicated by the sub and sm tags.

Datasheet for the TIP41C NPN and TIP42C PNP complementary power transistors, a 195 KB PDF.

Schematic PDF from Sony for the MEX-GS610BE, MEX-GS610BT and MEX-N6050BT car receivers, marked version 1.0 and around 8.47 MB.

Repair guide archive for the Oppo A9 2020 covering no network or weak signal faults, 352 KB in RAR format.

Network section of the Samsung SM-A05 schematic, packed into a 6.27 MB PDF. It covers the radio part of the phone: transceiver, power amplifier, antenna switch, filters…