Zener mono power amplifier rated 500 W, documented in a 952 KB PDF. The name gives no revision or further details, so verify the content on opening, which may include…

PDF for a Zener 100 W mono amplifier with a quasi-complementary output stage, as indicated by the Spanish word cuasi, 569 KB in size.

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

PDF reference of about 794 KB for the HCF4047B, a CMOS 4000-series low-power monostable and astable multivibrator.

Schematic of a 2.1 channel amplifier based on the TDA2030A, from Technical Mriganka, in a 416 KB PDF.

PDF procedure document dated 20170811 describing a firmware update for the MP2949 IMVP8 voltage regulator controller on the ASUS UX490UAR.

A 111 KB PDF named 555 and grouped with schematics, with no brand or board stated. The number matches the widely used 555 timer designation, but the document should be…

Quanta R62 laptop schematic, the name carrying a 1022 date or build code and a reference to the NB670, a Monolithic Power Systems synchronous buck converter often used…