Diagram of a 2.1 preamplifier joined to an audio power amplifier, taken from a YouTube project; the doubled pdf extension is just a naming slip.

PDF schematic of a low pass filter built around the 5532 dual op-amp, intended to feed an audio power amplifier, 126 KB in size; the name suggests it was shared…

A 157 KB PDF dedicated to the 2SD2200, a JIS-coded part whose 2SD prefix marks an NPN low-frequency bipolar transistor.

A 98.5 KB PDF titled with the 2SC3256 part number, placed in the schematic section yet most likely the device datasheet. In JIS numbering, 2SC means an NPN transistor.

Datasheet-type PDF for the 2SD2616, 45.9 KB, listed under schematics in the index. The JIS code 2SD marks an NPN bipolar transistor meant for low-frequency circuits.

Named for the 2SC3225, this 212 KB PDF is filed as a schematic but is expected to be the datasheet for this NPN part, 2SC being the JIS prefix for NPN transistors.

Lower-case naming aside, this 45.3 KB PDF concerns the 2SA1759, a JIS-coded PNP bipolar transistor, and is catalogued as a schematic though its content is a component…

A 295 KB PDF for the 2N5830, catalogued under schematics but presumably a datasheet for this JEDEC-numbered component.

PDF of 205 KB named for the 2SC3279, stored as a schematic though it is probably the datasheet of this NPN transistor, the 2SC prefix following the JIS naming system.

Datasheet-like PDF of 116 KB covering the 2SC3638. Under JIS semiconductor naming, 2SC identifies NPN bipolar transistors.

Covering transistor 2SK1417, this 101 KB PDF is filed as a schematic though the single part number suggests a datasheet.

A 180 KB PDF named after the 2SC5255 NPN transistor and catalogued as a schematic, though it is most likely a component datasheet.

This 463 KB PDF, named after the 2SC4315, is grouped with schematics, though a bare part number like this usually indicates a datasheet.

PDF sheet, 218 KB, for the 2SA1049 transistor, indexed as a schematic. The 2SA prefix identifies a PNP bipolar device under Japanese JIS registration.

The only detail in this 92.7 KB PDF name is the part number 10MQ060N, a middle grade between the 10MQ040N and 10MQ100N files listed alongside it.

PDF of 41.0 KB for the 2SD1821, with an E suffix in the name whose meaning is not stated.

This 85 KB PDF is identified by the part number 2SC2314, an NPN transistor under the JIS naming scheme.

PDF named 2SD951, filed as a schematic but in all likelihood the datasheet for this 2SD-series NPN bipolar transistor; at 267 KB it may include scanned pages or extra…

Component PDF, 409 KB, for the 2SK2964. In the Japanese JIS designation system a 2SK number refers to an N-channel FET, so treat the file as a transistor datasheet even…

Reference PDF of 178 KB for the 2SC4682. Although catalogued as a schematic, the part number uses the Japanese JIS scheme where 2SC identifies an NPN bipolar transistor…

Datasheet covering the 2SC4487 transistor, stored as a 155 KB PDF and filed as a schematic in the index.

Brief 28.6 KB PDF titled with the part number 2SC5682, which under JIS rules belongs to an NPN bipolar transistor, so it is presumably a datasheet.

Named 2N6788 and stored as a 132 KB PDF, this entry is classed as a schematic but reflects a JEDEC discrete device code.

Shared PDF of 89.1 KB covering three variants, 10ETS08FP, 10ETS12FP and 10ETS16FP, according to the name.

Transistor reference for the 2SD2048, 78.9 KB, in PDF format and listed among schematics.

Covering the 2SK2952, this PDF of 414 KB is a discrete transistor document rather than a full circuit, as the JIS 2SK prefix indicates an N-channel field-effect…

PDF document of 42.9 KB for the 2N6059 discrete semiconductor, labelled a schematic in the index though it is probably a datasheet.

Small PDF reference named only by the part number 2SK2740, filed as a schematic but most likely the component datasheet for this 2SK-series N-channel FET.

Documentation for the 2SD2241 NPN transistor, supplied as a 178 KB PDF and categorised as a schematic. The name provides only the part number.

Datasheet-type PDF of 132 KB covering transistor 2SC4438, filed with the schematics in this index.

Revision 1 of a document for the 2SA1774, as the rev1 token in the name indicates, supplied as a 97 KB PDF and filed under schematics.

Compact 66.3 KB PDF named after the JEDEC part 2N6796, indexed as a schematic. Apart from the component code the name offers no model, brand or board details.

Datasheet-style PDF, 137 KB, covering the 2SK2550 transistor even though the catalogue lists it as a schematic.

Small 27.9 KB PDF for the 2SC4630LS, sorted into schematics though it reads as a transistor datasheet.

Part number 2SC5714 names this 166 KB PDF. Under the Japanese JIS scheme, 2SC parts are NPN bipolar transistors, so the document should list electrical ratings and a…

PDF datasheet for the 2SC5368, an NPN bipolar transistor under the JIS 2SC scheme, filed under schematics and around 188 KB.

Covering the 2SC2500, this PDF of about 180 KB is indexed as a schematic but by its name is a semiconductor datasheet.

Listed under schematics, this 52.8 KB PDF refers to the 2SB1675, a PNP transistor in the Japanese JIS numbering system, so its content should be the part datasheet.

Indexed as a schematic, this 152 KB PDF for the 2SA1685 transistor is in all likelihood a manufacturer datasheet identified by its JIS code alone.