[LAU] OT: isolating transformers, redux

[Ken Restivo]

I've been looking around for a 1:1 line level transformer to lift the ground when connecting the headphone stereo output jack of a laptop or iPod to a consumer-grade amp that takes a headphone jack input.

All I've been able to  find is insanely expensive, like US$200.

http://www.jensen-transformers.com/prices.html#ci2rr

That's ridiculous. I just need the transformer itself; I can connectorize it myself.

But my searches (Jameco, Mouser, DigiKey) aren't turning up anything except POWER transformers, much larger than what I need.

Can anyone point me to some part numbers and (reasonable) prices for a 1:1 line level transformer?

Thanks.

-ken