Developer Max Williams has published a new tutorial to the Hackster.io website providing details on how you can build your very own open source HiFi preamplifier. The project includes schematics, PCB layouts, CircuitPython code via GitHub, BoMs, measurements and photos.
The project features a high-performance design with measurements, has been constructed using quality components and is completely digitally controlled. Offering makers a modular open source design. Connected components include :
– MDAC attenuator (PCB, code): Controls the volume
– Input selector (PCB, code): Selects the input
– Encoder panel (PCB, code): Holds rotary encoder and LED indicator
– Power Supply 5V (PCB): Power supply for digital components.
– Power Supply +/- 15V (PCB): Power supply for MDAC attenuator op-amp
– Micro controller board (PCB): Holds the micro controller and other connectors
– RCA panel (PCB): For the RCA sockets and connectors
For more details and full instructions on how to create your very own open source HiFi preamplifier jump over to the official Hackster.io website by following the link below. The PCBs and schematics for the project were created by Max using KiCad and the code that runs on the microcontroller is CircuitPython all of which are available via links in the project write-up.
Source : Hackster.io
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