You mean your outlets don't have grounds. If the wall box is grounded then you might be able to use one of those adapters with the wall plate screw going through the tab and have proper protection. Otherwise the "correct" thing to do is have the wiring updated to modern standards. I do understand the resistance to spending money, but in this context I can only recommend doing it right.
So, if you did get electrocuted how would I collect?
dude ..... there are millions and millions and
millions of homes in the US that still have two pronged outlets with no grounds.
I have NEVER lived in a house with three prong outlets in my entire life except the very last house my parents had for a few years before I moved out in 1970.
Every single house my wife and I have lived in was two prong outlets including the 1950's house we live in today.
Further, people use those three to two prong adapters millions of times every single day.
Every hardware store in the country has shelves with a hundred of those things sitting there for people to buy.
Look ...... first off ..... I have not said a single time that there is
zero risk nor have I given any advice to anyone to do or not do anything.
ALL I have said is that ya'lls immediate "OMG OMG OMfucking GOD you're gonna die" reaction anytime anyone uses an adapter is ludicrously overblown and it is and it's easy to see that it is.
For example, your figure of 400 electrocutions a year, meant to show there is a real danger is 1. super misleading and 2. statistically insignificant.
A very quick google shows that about 100 of those are transmission line accidents. The rest are construction accidents and/or people digging where they shouldn't be and have absolutely nothing whatsoever to do with adapters or defeating grounds.
I'm sure there are some but the number is very small or I'd find some.
In fact, (I didn't spend a ton of time on this 'cause I don't care that much but I did do some searching) in fact I couldn't find a single electrocution associated with the things ya'll are going all 'nanny-state' over and I could only find three electrocutions in the last 30 years associated with guitar amps.
Sorry ...... but when you consider the billions of times that people have used those adapters in that time and the literally trillions of times people have plugged things into the wall in houses like mine with no grounds, the figure for electrocution due to that issue is essentially zero.
Statistically you are FAR more likely to get struck by lightening.
FAR more likely to choke to death on a sammich.
FAR far FAR more likely to die
today in a car wreck.
Hell ..... a quick google showed 26 deaths from dogbites in a year and I can only find 3 cases of guitar amp deaths in 30 years.
Any of you guys ride motorcycles? .... Around 2700 dead a year.
Ya'lls concern is way overblown ....... period.
That's not saying that it can't happen. It can and I have to think it has even though I can't find any examples of it.
But in a society with 300 million people and millions of ungrounded homes and billions of three to two prong adapters out there, to not be able to find examples of the 'deadly consequences' of defeating ground means that it just about never happens.
A few other issues:
To our British and Australian friends .... you have 240v systems ...... obviously more dangerous than 110v. Your feelings and laws about it don't apply here.
To whoever suggested that I might go to jail if I had an adapter on something and someone got bit, hahahahaha ..... no chance whatsoever of that .... both because no one's gonna die from that in the first place but even if they did it would be an accident and nothing more. ZERO chance I'd go to jail for using a legal product that every single hardware store and Walmart sells every day.
For boulder who runs a sound company the issue is different. If he gets someone shocked, not even dead, just shocked ..... he could easily get sued damaging his company so he HAS to be sure no one gets bit even a little bit.
Finally ..... guys, I'm not some newb here that you have to explain basic concepts to ..... I absolutely know as much about this shit as any of you.
I have 45 years of doing sound fulltime for every single band I've ever played in for 7 nights a week for 45 years plus doing sound for other bands. I very likely have MORE gigs and experience under my belt than any of you.
At least as much at the very least.
Also I have my diploma in electronics/electrical repair on the wall saying that I know at least a little bit about this stuff.
Yes ..... that was 25 years ago but still .....
The ONLY areas ya'll know more than me about this stuff is in the latest new gear and processes. I pretty much quit doing sound other than for my own gigs about 6 years ago so if I needed to know something about the latest digital mixers and/or time alignment devices I'd ask boulder or moresound because I wouldn't know.
I don't know much about switching power supplies although if I needed to I could quickly learn. Just haven't had a need to. So when we get to D/A converters A/D converters ....... the very most modern gear ...... I haven't delved into it much.
But that's not what we're talking about here.
I'm NOT saying anything to anyone about what they should or shouldn't do ...... I'm just saying the 'OMG' reaction to defeating ground is ludicrously overblown and there's simply no way any of you can show any statistics that make it the super dangerous, deadly thing you're all asserting it is ..... it just isn't.
It CAN happen and no one should be careless about electricity but it's EXTREMELY rare.
.