(Best primary source)
If you are looking for educational or demonstration videos involving these models, you can find them on the following platforms: i--- Ttl Models Free Videos
It seems you are looking for (likely referring to Transistor-Transistor Logic in digital electronics). (Best primary source) If you are looking for
| Concept | What the video should show | | :--- | :--- | | | The input stage model of a standard TTL gate | | Phase splitter | How the internal transistor divides the signal | | Totem-pole output | Active pull-up and pull-down operation | | Voltage transfer characteristic (VTC) | Noise margins (VOH, VOL, VIH, VIL) | | Comparison with DTL | Why TTL replaced Diode-Transistor Logic | i--- Ttl Models Free Videos
Look for videos with "LTspice simulation" or "Multisim TTL model" – these visually demonstrate the electronic models in real-time.