Schematics for older AMD Radeon graphics cards, covering the HD 7000 generation up to the R9 390, about 40.6 MB in a RAR archive.

Schematic for Compal board LA-E331P, revision 1.0, with AAM00 given as the project code, in a 2.35 MB PDF.

Compact 42.0 KB PDF for the 2SD1135, catalogued under schematics but evidently a datasheet for that single transistor.

Short 46 KB PDF named only 2SD1651, classified as a schematic but almost certainly the datasheet for this NPN bipolar transistor from the 2SD family.

Schematic for the GT-S6310 phone, packed in a 2.79 MB ZIP. GT model codes follow Samsung's numbering for its older handsets.

Schematic of the ThinkPad T30 notebook motherboard in PDF format, roughly 986 KB. The name gives only the model, with no board number or revision, so confirm the design…

PDF datasheet, 48.1 KB, for the part named 1T3797, indexed among schematics. The 1T prefix follows the Soviet designation pattern used for germanium transistors, though…

Circuit schematic for the classic Nokia 6210 handset, saved as a 779 KB PDF document. For older phones like this, diagrams are especially useful because replacement…

Revision 5 of a datasheet for the 4N25 optocoupler, a 281 KB PDF. The 4N25 is one of the oldest and most common phototransistor-output isolators, often found in power…

Datasheet-style PDF for the 2SC4105, 92.7 KB, catalogued as a schematic. Following the Japanese JIS designation system, 2SC marks an NPN bipolar transistor, and this…

A 41.1 KB PDF named for the 2SC3312 part, listed as a schematic yet in practice a component datasheet.

Reference data for the 1T417 transistor in a 47.5 KB PDF, filed in the schematic section. The 1T prefix marks a germanium transistor in the old Soviet naming system.

Datasheet for the 1T412 transistor, 59.8 KB in PDF format and stored with schematics. The 1T prefix places it among Soviet germanium transistors.

Combined datasheet in PDF covering the 93C06 and 93C46 serial EEPROMs, small low-density Microwire memories from the 93-series family, 135 KB in size.

A 148 KB PDF named 27lc512, filed under schematics but most likely a datasheet for a low-voltage 27-series EPROM, given how the part number is built.

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.

PDF datasheet, 44.7 KB, describing the 1T368 transistor, catalogued in the schematic section.

Data for the 1T367 transistor in a 44.2 KB PDF, stored with schematics. The 1T prefix belongs to the old Soviet semiconductor designation, indicating a germanium…

PDF reference of 45.2 KB for the 1T363 transistor, filed in the schematic section. The designation follows the old Soviet system, where 1T stands for a germanium…

A 164 KB PDF catalogued as a schematic and titled 28C64B, the B revision of the 28C64 64 Kbit parallel EEPROM code. The name names no vendor or package.

PDF of 129 KB titled 27C16, filed as a schematic but corresponding to an early member of the 27C EPROM family by its part number.

Schematic for the Compal LA-1181 board at revision R4, packed in a 1.30 MB RAR archive.

Schematic diagram in PDF for the IBM ThinkPad R40, roughly 1.45 MB; the name gives no board number or revision.

PDF covering the 2SD1880, about 88.9 KB, listed as a schematic but named after a single semiconductor part.

Tiny 30.2 KB PDF named 2sk65, a JIS part number that indicates a component datasheet, although it is filed as a schematic.

Datasheet-style PDF for the 2SC5386 transistor, filed under schematics in this index. The 2SC prefix follows the old JIS convention for NPN transistors intended for…

At 33.6 KB, this PDF named 1N746 is a short component datasheet for the original non-suffixed part of the 1N746 zener family, indexed under schematics.

This 89.3 KB PDF, classified as a schematic, is named 27128 and carries no brand, device or board details.

A 130 KB PDF filed as a schematic, titled 28C16A, the A revision code of the 28C16 16 Kbit parallel EEPROM. The name gives no manufacturer or package details.

Datasheet PDF of 446 KB named 29F400, listed among schematics without any brand or board.

PDF of 77.6 KB for the 24C01A, a 1 Kbit (128-byte) I2C serial EEPROM. The name carries only the part number with no device or board details, so expect general datasheet…

PDF reference for the BQ24721C, a Texas Instruments multi-chemistry battery charge controller used in older notebooks.

Issue of Silicon Chip magazine dated February 2005, scanned to a 24.7 MB PDF. Silicon Chip is an Australian electronics magazine that publishes construction projects…