[morzh]

Second a counter.
I did the same.
Though eventually I spent $200 and bought an HP digital sig gen, which is a great thing and would be even better if I wasn't afraid for my back every time I have to put it on the bench.

For the same price a Rigol is a good thing. If you buy a solid state generator, use a protection when using its signal on tubes - there are reports of killing the output stage with it. I used a low value Zeners back to back soldered to a BNC barrel to clamp the voltage. It does not affect the signal but will save the generator from a capacitive charge of a high voltage when connecting it to a radio at certain places.

Tube tester ... no, it is not a must, especially if you like Terry and probably have 10 pieces of every tube imaginable so at least one of them will be good.....then, no, you do not need it. But I am yet to accumulate this many tubes and I do not have that much time left, so the Hickok helps