I have here a very nice Dentron MT-3000 A tuner. The face is near perfect and the push buttons do work as they should. It has 2 rca jacks added to the rear I believe for sampling.
There is an added output connector for a real dummy load but the 200 watt I think it is dummy load is still in it. The output power meter works fine but there is a problem with the reflected but I tested the meter and its fine so I assume its in the circuitry. Its tunes fine and its never been arced over.