I own several Hickok tube testers and other pieces of their test gear but my favorite is my 539C it so far has never let me down by not being able to test what I need tested, The 799 is a decent tester but if you can find a 539C for a good price buy it!
B&K equipment is ok stuff but I would not class it with Hickok...This of course being from personal experience...
"Marconi Was The First LID!"
"Far better it is to tempt mighty things, than to take rank with those timid creatures that know neither victory or defeat!"
"Eleftheria h thanatos" (Greek for Freedom or Death)
"Molon Labe" (Greek, King Leonidas to the persians regarding their weapons "Come and Take Them!").
When the people fear the government there is tyranny; when the government fears the people there is liberty!
When seconds count, the police are mere minutes away.