Welcome

Why won’t the TI-99/4A cassette port work with my PC sound-out port? Here’s why …

TL;DR: the OEM TI cassette cable tape-audio-1-input jack is wired incorrectly for equipment available now. Leave pin 9 floating and run pin 3 to CS1 plug sleeve and things magically work. You can cheat by amplifying the signal a lot (and expect it to have issues from time to time) or fix your wiring. Your […]