Jensen ISO-Max CI-1RR Review (Isolation Transformer)

[laurelkurt]

Both components connected by the link transformer are supposed to be grounded, class I. If they are floating class II instruments, the hum will inevitably increase due to stray capacitances and their non symmetry.

So the pre-pro and the amp should both be chassis grounded to a 3rd prong plug? Couldn't that open another possible ground loop or would the Iso-max (hopefully) prevent that? If so, can you point me to a (relatively) simple instruction to safely convert a floating class II to a grounded class I? Answering with no is just fine with me, and thanks again.

 

[pseudoid]

Since when did a XFMR become a trafo?

I did measure CMRR of my $10 ISO trafo, 70db@60Hz, 60db@1000Hz. 0db is 2Vrms.

International Organization for Standardization also has a similar question?

 

[Speedskater]

Since when did a XFMR become a trafo?

In the past they were X-formers. But somehow things change.

 

[pseudoid]

Since when did a XFMR become a trafo?

In the past they were X-formers. But somehow things change.

I think it started with a mistaken translation...

 

[KSTR]

Since when did a XFMR become a trafo?

XFMR is sloppy abbreviation (there isn't even an X in the word 'transformer', nor are any characters uppercase), trafo is way more correct (transformer) and widely used internationally.

 

[Blumlein 88]

Xmas.....xfmr.........................as long as everyone knows what you mean. I don't see Xfmr confused with something else.

PS, and actually I do dislike Xmas or X-mas for Christmas.

PPS-would you prefer tfmr, tformer or t-former? I wouldn't.

 

[Speedskater]

XFMR is part of the old Ham radio shorthand:

XCVR ~ Transceiver
XFMR ~ Transformer
XMTR ~ Transmitter
XTAL ~ Crystal
XYL ~ Wife

 

[SIY]

XYL ~ Wife

Only if she's trans.

 

[DualTriode]

Anything but Trany.

I picture some dude dressed in drag

 

[pseudoid]

Anything but Trany.

"Tranny" is short for [errrrrr...] "Xmission" which is short for "Transmission"?

 

[ErVikingo]

How does this compare to an Earthquake GLI-200?