The BC337 is an NPN transistor with a maximum gain of 630, commonly used in low power audio applications. It can also switch loads up to 45V and 800mA hence also used as general purpose transistor.
The Raspberry Pi 1 to 3*40 Pins GPIO Expansion Shield, Expand General Purpose Input/ Outputs from 1 to 3 Increase the amount of 40 pins with this expansion shield. Includes mounting hardware for added security.
The VS1053 is a versatile MP3 decoder chip belonging to VLSI Solution's extensive slave audio processor family. Its capable of recording in three different audio formats, from lossless 16-bit PCM to highly compressed.
The 2N2369A is a silicon planar epitaxial NPN transistor TO-18 metal package. It is designed specifically for high-speed saturated switching applications at current levels from 100μA to 100 mA.
The AD7175-2 is a low noise, fast settling, multiplexed, 2-/4- channel ADC for low bandwidth inputs. It has a maximum channel scan rate of 50 kSPS (20 µs) for fully settled data. The output data rates range from 5 SPS to 250 kSPS