[Mike Kelly]

Those meters with the test probe directly mounted on the meter , are primarily meant to used with a test panel . I cannot imagine anyone using those meters by placing the meter and its probe directly onto the valve sockets , which are mostly inaccessible and surrounded by wiring and other components . Most of the smaller valves I've seen have the anode pin on the base , the cap is , if present , is usually the control grid . I think a multimeter would be of more use for servicing wireless sets . The famous AVO meter perhaps ?

I only know of the 11 set having a test panel . The R107 sets are just not seen over here .

BTW the Australian version of that meter was made for the 11 set specifically . The Aust. meter isn't listed in any other wireless set parts list as far as I know .