Wall voltage...

  • Thread starter Thread starter GregM
  • Start date Start date
GregM

GregM

Member
At what point would you guys start to be worried? I recently replaced my power conditioner with a Furman that has a voltmeter on it. I had checked my voltage manually once in a while in the past, but with the Furman now I'm consistently seeing up to 126 volts. I've never had a tube fail or any other issues, but the Furman starts to warn you when voltage goes over 125. Should I get a regulator or variac?
 
126 should be fine. We went over that a lot at our practice space and never had issues. I had this same question and I remember finding out a 120v system has a 10% tolerance so a range of 108-132V.
 
Mine is 124-126... so I use a Brown Box to bring it back to intended levels. I'm running vintage Marshalls that run on 110 along with new amps. Its a great investment.
 
I am always in the 124v to 126v. I have never had an issue. I just asked my dad and he is a government building inspector/plans reviewer and he said 126v is ok. Not a whole lot of room above that though.

I use voltage regulators/conditioners/and backups on all of my gear.
 
sutepaj":j3ynv1yc said:
126 should be fine. We went over that a lot at our practice space and never had issues. I had this same question and I remember finding out a 120v system has a 10% tolerance so a range of 108-132V.
Click to expand...

This
 
psychodave":1l8jchx3 said:
Mine is 124-126... so I use a Brown Box to bring it back to intended levels. I'm running vintage Marshalls that run on 110 along with new amps. Its a great investment.
Click to expand...

Nice! I've considered getting that brown box as sell.
It allows to set the proper voltage to avoid spikes and keep stability. I agree, it is a really good investment.
Nice to know !!
 
Nothing to worry about. That voltage is fairly common. I regularly see 130vac as well. As state above , over 132vac is an issue that needs to be addressed by an electrician
 
Most everything these days is rated for + or - 10% . So that puts you good up to 132v.
Also if its rated at + or - 10% its probably good to + or - 15% at least
 
You guys seem to forget that bias changes as wall voltage does. I prefer consistency in my sound which is why I use a Brown box.
 
For the hell of it could somebody link me to the 'brown box'.. I realize that bias shifts but I am biasing my amps at the moment to what my conditioner says.
 
I would need a dozen of those for my studio lmao. I will stick to what I have.
 
psychodave":2468qv66 said:
You guys seem to forget that bias changes as wall voltage does. I prefer consistency in my sound which is why I use a Brown box.
Click to expand...
Didn’t forget, unless your tubes are biased really hot a 10% rise in primary voltage isn’t going to hurt the tubes
 
Not having consistency with voltage was driving me crazy so I got an older variac.
So now I have a Furman power factor, a voltage regulator and a variac. Love it and biasing 62% of max displacement @117 and keeping it there is great. Downside...it was like a grand just to plug something in :aww:
 
splatter":1gtowkm3 said:
psychodave":1gtowkm3 said:
You guys seem to forget that bias changes as wall voltage does. I prefer consistency in my sound which is why I use a Brown box.
Click to expand...
Didn’t forget, unless your tubes are biased really hot a 10% rise in primary voltage isn’t going to hurt the tubes
Click to expand...

It won’t hurt them at all, however they will sound different. :)
 
You must log in or register to reply here.
Back
Top