The Beavis Ultrasound PnP is an open source replica of the Gravis Ultrasound PnP sound card. It includes complete schematics and reverse-engineered source code, targeting enthusiasts interested in retro computing and hardware customization.
The Beavis Ultrasound PnP is a new open source project that replicates the Gravis Ultrasound PnP sound card. This project sets itself apart by providing all necessary schematics and the reverse-engineered source code for users looking to build or modify the card.
To assemble the Beavis Ultrasound PnP, an AMD InterWave chip (AM78C201) is required. The design focuses on integrating sound card functionalities within this single chip, allowing for a relatively straightforward build process. Builders should proceed with caution, as the board design has not been tested for functionality.
The board measures 8.2 x 4.2 inches and features a four-layer design. Suggestions for component substitutions and configuration are provided, such as using either the LM833 or JRC5532 op amps, depending on availability and performance needs. Users are advised to source additional components like the ROM and EEPROM for full functionality.
The EEPROM contains the plug-and-play configuration data needed for the card to function correctly. It must be programmed with data from a specified binary file, ensuring to account for bit order reversal during the process. A complimentary Python script is available for those interested in custom configurations.
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The Beavis Ultrasound PnP is an open source replica of the Gravis Ultrasound PnP sound card. It includes complete schematics and reverse-engineered source code, targeting enthusiasts interested in retro computing and hardware customization.