Thank you all for your suggestions
The T16000 is the one I have. I opened it and found that the component that regulates the throttle is broken. It lasted many years and I would buy it again, but it is really impossibile to find it. I confirm for the X52, I bought it to replace the T16000 but I immediately went back. The Airbus TCA looks similar to the T16000, I’ll see if I can find it. I wonder how it is possible that such a shortage of available products happened.