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Isolation Transformers

I bought an isolation transformer from a fellow selling his home audio gear about a year or so ago. It’s a 12” cube that weighs roughly 60 lbs and has 8 plugs in the back. It was apparently used in a hospital. 
I have most of my gear including a tube preamp plugged into it mostly for protection purposes. It puts out a constant 124v which is a few more than what I get directly from the wall socket.
Anyone else using this sort of device as a “power conditioner” and what are the pros and cons of using one? I’m guessing delivering a constant voltage (almost) regardless of the load is the main advantage of this type of device but am wondering if it impedes full current delivery at high amplifier loads. Thanks. 
128x128kalali

Showing 4 responses by erik_squires

erik_squires
15,663 posts
 
I'm thinking of this:
https://amzn.to/2Z7qun3

$80 seems pricey though, see if you can find a cheaper version.

But now that I think about it, Jensen Transformers also makes in-line RCA or XLR isolators as well. 
Best,
E
erik_squires
15,663 posts
 
Hi Test Pilot,
The usual thinking is to use isolation transformers, but the owner of Jensen Transformers wrote an article about how this doesn’t really work. Your best safest bet are the semi-active ground lifters, assuming you have any issues at all.

Best,
E
erik_squires
15,663 posts
 
It's a balanced power provider with a little surge and noise protection added.

:)

Nothing wrong with it, but it's' not going to regulate voltage.

Best,
E
erik_squires
15,663 posts
 
Hi Kalali,

I'm not sure what you have. Can you post the make and model?

An isolation transformer by itself does not regulate voltage. It does eliminate DC and prevent certain types of shock, as well reduce noise due to the inductance. 

A voltage regulator may also be present, but these can be with or without the isolation component. The benefit here is, of course, a tightly regulated AC voltage, though not necessarily surge protection, and it may take a little for the regulator to adjust to incoming and outgoing conditions. 

Best,


E
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