Le labo de Michel | LDM #186: Aircraft LOCKHEED CONTROL Total Air Temperature Indicator @lelabodemichel5162 | Uploaded 3 years ago | Updated 2 hours ago
The first parts of this video shows the teardown and the reverse engineering of the front-end board of this TAT indicator.
The TAT platinum sensor is connected using a 3-wires configuration permitting a compensation of the cable resistance.
The second part of the video shows some tests performed on this device.

00:00 - Intro
01:10 - Teardown
05:00 - Front-end schematic diagram
08:08 - Test