Opinions of this guy? First time for me watching him. Frankly, I'm not overly impressed. Seems to me that it took him forever to get to rule #1 when faced with dead TE, no matter what it is. "Thou shalt check the power supply voltages first"
He fusses about how the 465B is constructed and unserviceable. I'll give him that. But he fails at RTFM and it would have told him how to isolate the boards to track down the short.
He mentions how superior modern DSO's are but he fumbles with the controls of his Tek DSO like it was the first time operating it.
Am I off base and perhaps just jaded or something?
Nope!
By pure luck, he found a S/C tant, then didn't follow it up, although the likelihood of a tant having a DC short across it by design is vanishingly small.
Had I been so lucky, I would have disconnected one lead of the cap right then & there, & if everything had come back OK, replaced it, had a quick look at a few of the others, & called it good!
But, then, I fixed stuff for a living!
That said, I probably would have looked at the manual upfront, anyway, found what supply rails the thing had, found an easy spot to check them, & chased down the problem that way.
I do agree, some Tektronix gear is hard to access, but they don't have that all to themselves.
R&S are no picnic, or just about anything HP, Marconi, or Thomson.
Devices having extender boards are great, if you have them, but few of us do, making them no easier to fault find than those with a similar configuration to the 465B.
Currently, I am digging through a 1970s Yaesu HF transceiver, which has nice little modular PCBs, meant for use with extender boards.
Without such boards, howver, they are quite difficult to fault find, which is not made any easier by the occasional
board which isn't like that.
I like the way he rabbits on about how cheap Rigols are, but his DSO is far from "modern" being an old "Tedious" series, maybe a generation newer than the TDS 210 & the like.