My Time Domain Reflectometer (TDR) circuit is now available in kit form. Far Circuits has made a TDR kit that consists of circuit board and components. The Far Circuits version is a slightly modified circuits, the modification is that the circuit board has a 5V regulator IC in it. With that regulator the circuit power supply can be in 8-15V DC range (maybe eve higher). I have received a sample kit but I have not yet built my kit.
I was looking for something completely different,got your page TDR circuit kit available « Tomi Engdahl’s ePanorama blog and found it Interesting.Nice Post on circuit electronics…
I will be building my TDR when I get my kit. I need to know what is the best rotary switch for my time base? A part number would be nice, it it is very critical, which I doubt. 73 JonB
Can you suggest any modifications for me to use this as a moisture sensor? I would like to use your circuit with a moisture probe (replaces the cable under test) and a scope.
Thanks!
Amazing details. I’ve bookmarked this web site.
How can I get already assembled unit
How can I get an already assembled unit for soil moisture measurements?
Sorry. I don’t sell ready assembled units.