Manual XJ6 Series 3 Air Conditioning/Heater Controller

The AC/Heater controller on these cars with the Delanair heater have always been problematic. Originally they were available but expensive, then there were aftermarket units that were less expensive but unreliable, now, who knows.
Anyway, about 10 years ago I decided to have a look at how this thing works and worked out a manual controller that would give me complete control of the system, but manually. The unit will no longer automatically keep the temp, but it can be adjusted by moving the temp control.
By the way, this also will work with the Series 2 XJ6 and the XJ-S from the beginning until sometime in the late 80s. Any of the cars that use the servo instead of the electronic type.
This video shows the latest incarnation of the controller and more or less how it is constructed.
If you have questions, or want a copy of the parts list or schematic, just get in touch.
This video shows a later version, and one that I can easily make up to sell if anyone wants one. • Jaguar XJ Heater/AC ma...