Where I can test my valves?

[Audinista]

I have some old Mullards - EL34, ecc82 and ecc83, some NOS, others  used. I've no tube tester. Where in Greater London area could I test it properly? 

 

[Jazid]

I can test them here in Earl's Court area but I am super busy at the moment so it won't be fast, best to drop them off and let me do it at my own pace. PM with details of number of valves to test if interested?