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My bass amp shocks me!!

Get a new electrician. Ground up is code now. He uncoded you.

Those certainly don't look like high voltage gloves. Gloves made to keep your hands clean may result in clean hands while being electrocuted. Not saying they are not high voltage rated, but they look like dish washing gloves in the picture.
Yep, new code is ground up.
.....but didn't the OK state both of his bass amps did this? I guess both could have a problem. Definitely get the amp(s) checked out by a competent tech.
 
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This!!

But if you really want to keep on playing with it in its current ( ;) ) condition, then at least invest in some safety equipment:

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Here's a little demo on how to use them:
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You've got a short creating what's called a "live chassis" situation. It can be fatal if you ever ground yourself well enough.

Have a tech repair it before you seriously hurt yourself or someone else with it.
 
I've even experimented with using a different amp and another outlet in the same room, and the same thing happens......Also when we don't have the pedal, I plug in my laptop, and I get shocked through the keyboard!

People telling you it's the amp are skipping these two very important sentences.

It isn't the amp. It's the room. Do not plug anything in to an outlet in that room again until you get the ground fixed by a competent professional.
 
Once, I got shocked through my headphones while practicing at home (scary 100+ year old rental house with questionable wiring). I heard a buzz through the headphones, and over about 10 seconds, it got louder and louder and then I got shocked in both ears. Scared the crap out of me. Never used phones with that amp again, and never had any other issue, ever, with that amp. Still no idea what happened there.
 
Thanks to those who shared some technical insight, as I am interested in this and am in an electronics program at the local technical college, I'm just not far enough along quite yet. It's interesting that as many electronics enthusiasts as there are, most would rather tell you off or tell you to go to someone certified than volunteer to impart some knowledge, even if ultimately the amp is taken to the tech. I intended on taking mine to a tech, which I have since done, I was just hoping for some insight from those who have experienced something similar. I should also mention that I have never experienced any shock from my guitar amp, which is a Marshall AVT50, and it has been plugged into both of the basement outlets that the bass amp was plugged into when it has delivered the shock. I'm inclined to think it's the house too.
 
Most (all?) of those houses had only two prong outlets without a ground, not three prong. OP just a hint, one end (black) of the multimeter needs to go to ground and the other to the exposed volume control to be able to measure any potential it may have. Then again your electrician may have found an open ground and since he had it open anyway just turned it around. What are you standing on when you get the shock, cement floor?, carpet? Have shoes on? Are you holding your guitar when you get shocked? You have to be getting grounded somehow or other.

The outlet is three prong. So the black end of the multimeter goes to the circular prong of the power cord and the red end goes to the gain knob to test potential? There is carpet, and I think I had shoes on.
 
The outlet is three prong. So the black end of the multimeter goes to the circular prong of the power cord and the red end goes to the gain knob to test potential? There is carpet, and I think I had shoes on.

But you are testing for AC. It doesn't matter which color goes where.
If you don't know that you shouldn't be doing the test at all.

You may not learn anything about house wiring in an electronics course.
Electronics and electrical wiring are related in that they both involve wires and electrons, but they are different disciplines.
Becoming an electrician is a different set of courses from electronics.

Don't be that guy who gets hurt because he knows just enough to be dangerous.
 
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please get the amp - and the location you play it - looked by someone who knows what they're doing!!!!!

a few years ago i started getting shocks from my computer monitor. it turned out that the spot in our place where i had the monitor was in front of all the electricity boxes on the other side of the all, and it wasn't properly shielded - actually it wasn't shielded at all. i started having heart murmurs, and didn't put it together as the shocks didn't seem that strong. luckily for me, my son noticed and pointed it out. it took months for the murmurs to go away, and my doctor said it could have killed me.

do NOT mess with this yourself, as everyone else is saying. YOU. COULD. DIE. or you could cause yourself permanent heart damage for real. please get everything checked out, and if you're told nothing is wrong, find someone competent. this is not stuff to mess around with!!!