GitHub - roybaer/generic_8_bit_audio_dac: Covox Speech Thing compatible parallel port audio DAC (original) (raw)

Generic 8 bit audio DAC

These are KiCAD and Inkscape design files for a generic Covox Speech Thing compatible parallel port audio DAC.

This particular design uses a 100kΩ SIP R2R DAC with a 25.5kΩ load resistor and a pass-through connector for a printer and is therefore significantly closer to the original than most other imitations.

Photo

Photo of the opened device

License

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.