Electronics > Repair

most broken equipment you run into?

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coppercone2:
well do you wanna tell 18 year old "its just like driving a car" or electrical theory

abeyer:
So the original question was just "equipment" but didn't really specify what qualifies, and people just jumped to test equipment... But in my opinion, everyone seems to be overlooking the likely far-and-away winner of cell phones here -- they're almost certainly the most broken given the combination of sheer quantity and being carried around in inhospitable environments on a daily basis.

DaJMasta:
I think you're seeing some bias just because scopes and power supplies are so prevalent, though there are a few others that are common and maybe don't feel like they fail as much.

But RF equipment has some kind of failure frequently, often due to misuse (easier to do, more risky conditions, more sensitive inputs/outputs, etc.), but also just to aging.  Amplifier stages often run hot and just by leaving it on for long enough, you see a good bit of older RF gear which just needs an amplifier somewhere in the chain replaced, but you'll see mechanical failures of attenuators and things too.  Then again, some of this may be the bias that fewer people are attempting to actually repair them.

As someone who's seen a lot of faults... I don't think there's a class of instrument that stands out as more likely to fail.  There are bad designs, commonly failing components or elements, and equipment/interfaces that are more likely to be abused, but on the whole things are much more similar in terms of non-user-error faults.

factory:

--- Quote from: coppercone2 on December 10, 2023, 09:19:04 am ---I can totally see someone using an analog meter for doing regular shit. its like visible and you learn what the needle bounce could mean for regular circuits.

and if you are doing brain-dead measurements then just knowing the needle % is way easier then interpreting a number

alot of people can't stand number clocks even, let alone number meters, the digits are like imposing, the dial tells you like a percent of

LOL at what would happen if cars only had a # display

--- End quote ---

There are some cars that don't have an analog speedometer, the Citroen C4 being one example, thankfully only had that PoS for a day or two over 10 years ago.

Paceguy:
Lately, it's been much of the stuff that I purchase on ebay. Badly packaged by careless sellers

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