First up, thank you very much for all the effort Mr Weigl has put in, and continues to put in, in developing such a fantastic tool for us Tube enthusiast and professionals.

I still cannot fathom the amount of work it would have taken you to work out all the different layers of the tester. The software, the hardware, the documentation and so on.

I did enjoy building the tester and I have a big task ahead of me to learn to perform all the tests possible with the tester.

Mr Weigl was very helpful when I had a problem with my USB interface. This was the only problem I encounter during the build. This is a testament to the quality of the build guide.

All those photos in the guide helped as well.

I am confident that should I encounter a problem in the future, I will not have a problem getting all the help I need form Mr Weigl

I am looking forward to reaping the rewards of building this tester.

Stephan Kissling