Posted By
MMS
on 2018-04-02
16:18:19
 |  Re: Modern sound chip for the Plus/4?
Hey 4-MAT! Thanks!
Nope, the SFX Expander does not exist for Plus/4, although Commodore should have develop it for the Plus/4, not for the C64.
I write my note, because there is a Covox revival project for PC, with very accurate resistor ladder (probably the 0.1% resistors sound even better than the ZN428E-8)
https://www.serdashop.com/CVX4
What would happen, if this device would be connected to the user port, and controlled by high speed ACIA? Just sending our bytes...
I am not sure, but I think even no specific voltage conversion required (as in case of RS232), just sometihng similar to the GEOCABEL or cable or this with different connector:
http://plus4world.powweb.com/hardware/Userport-Centronics_Cable
I will built this one...
http://old.pinouts.ru/ParallelPortsCables/GeoCable_pinout.shtml
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