A 214 KB PDF for the 2SA1429 part, catalogued as a schematic though most likely a data sheet.

Schematic in PDF form for a tone control board labelled NEWGEN TA2411B, where TC most likely stands for tone control.

Microchip datasheet for the PIC16C781 and PIC16C782, PIC16 microcontrollers with integrated analog peripherals such as an operational amplifier, comparators, ADC and…

Part datasheet for the 2SK2033, provided as a 296 KB PDF and filed under the schematic category. The 2SK prefix follows the JIS standard for N-channel FETs.

Datasheet-style PDF for the 2SD1302, 46.0 KB, listed in the schematic category. The 2SD prefix follows the Japanese JIS designation for NPN bipolar transistors in…

Compact 44.8 KB PDF for the 2SD1051, with an _E suffix in the name whose meaning is not stated, possibly a language or edition marker.

Datasheet for the 2SD669 NPN transistor in a small 32 KB PDF, maker not stated in the file name.

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

Part number 2SC2882 names this 137 KB PDF, which the index treats as a schematic. The 2SC prefix in the JIS system indicates an NPN bipolar transistor, making a…

PDF datasheet for the EL1604, filed as a 64 KB document; the name gives only the part number.

Named after the transistor type 2SC4646, this 148 KB PDF most likely contains the part datasheet. No board, model or revision is mentioned.

PDF data sheet of 47.6 KB for the 1T411 transistor, filed in the schematic category. Following the Soviet designation scheme, the 1T prefix denotes a germanium…

Datasheet for the LM741, the classic general-purpose operational amplifier found in countless analog circuits, supplied as a 148 KB PDF.

PDF covering the 3SK189, about 178 KB in size and listed in the schematic category, though the name points to a single component datasheet.

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

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.

Schematic for a mosque mixer, the Indonesian name Mixer Masjid, model Master Box X6, provided as a 585 KB PDF despite the doubled extension in the original name.

Updated release of the Matrix II t13 x73-1 amplifier document, marked new, in a 1.69 MB PDF.

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

A 199 KB PDF covering the AD7528, a dual 8-bit multiplying digital-to-analogue converter from Analog Devices with a shared data bus and a select line for each DAC.

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…

Named after the JIS part number 2SJ267, this 91.8 KB PDF most likely documents a P-channel field-effect transistor, since the 2SJ prefix denotes that device class.

Service schematic in PDF form for the Ahuja SSA 250, a model in the Ahuja range of public address amplifiers, size 929 KB.