Polarity switch disabling

Pacifik · #1 02-03-2012, 01:53 PM

I have an early solid state amp with a polarity switch (ground switch) and I would like to wire it for 21st century outlets. Is this the correct process illustrated below? Starting at 1 and ending at 3.

billfitzmaurice · #2 02-03-2012, 04:05 PM

If you're going to all that trouble just install one of these and pull the switch and cap entirely:
EMI Filters | Excess Solutions

While you're in there add one of these as well:
Heavy-Duty MOV Surge Protector - RadioShack.com

You'll save $100 compared to buying a power conditioner.

BillyB_from_LZ · #3 02-03-2012, 05:23 PM

Looking at your location, I'm curious about what the input voltage of your amp is?

bassmeknik · #4 02-03-2012, 05:29 PM

IME the switch and fuse should be on the hot side of the circuit, in the US that is generally recognized as the black wire. The white wire is a neutral. The OP drawing would be correct if the white and black colors were reversed.

I see you list Monrovia as your location. I am not sure if color codes are uniform worldwide so your drawing may be exactly right for your locale. Investigate your countries power grid or ask a local enthusiast what color the "hot" wire is and put the switch and fuse in that wire.

Pacifik · #5 02-03-2012, 06:06 PM

Quote:

Originally Posted by BillyB_from_LZ

Looking at your location, I'm curious about what the input voltage of your amp is?

On the back it reads AC 117V60 300 watts, I assume it's 117 volts at 60 hertz which is common.

I will make sure that the power wire is ran through the fuse now. Thank you