Tube tester

Hi guys. Anyone here perhaps have a tube tester? I find myself buying quite a lot of NOS tubes and have had a few lemons in the past. I am worried of putting my amp at risk so would like to use a tube tester to check for stuff like cathode leakage, shorts etc. beforehand. I was wondering if anyone has one locally and might consider letting it go; I am not too keen on importing a big heavy tester from overseas 

Cheers
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