The tester doesn’t have any 3 or 4 pin sockets (it’s from the mid fifties) but has several adaptor harnesses that may do the trick (I hope) It seems to be able to handle the rest. I always used Fluke 88 meters when I had an Audi/Vw shop and really liked them but they wouldn’t be suitable for radio repairs. If they had a down side, it was the price of the 2 special fuses they required and my techs went through alot of them. After much reading, I think the Fluke 115 will do the trick and is quite reasonable for a Fluke. Maybe I’ll ask Santa.