Re: [LAU] OT: isolating transformers, redux

Ken Restivo wrote:
> 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
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I don't think that's insanely expensive :) given that jensen are
probably one of the best at this sort of thing and their transformers
are used in many professional grade applications - and if you are going
to transformer-couple things then the quality of the transformer is
absolutely critical (even to get consumer grade performance) and
requires specialist knowledge and manufacture to get right (or a lot of
luck!). There may be other options that don't require a transformer -
it depends upon the problem you are trying to solve.
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Received on Wed Dec 22 00:15:07 2010