On Tue, 21 Dec 2010 11:48:57 -0800 Ken Restivo <ken@xxxxxxxxxxx> wrote: > On Tue, Dec 21, 2010 at 08:04:29PM +0000, linuxdsp wrote: > > 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 > > > > 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. > > The amp is a Cambridge Soundworks that cost US$100. I will not buy a transformer for it that costs more than the amp. > > -ken Then again there is ... http://uk.farnell.com/oep-oxford-electrical-products/a262a7e/transformer-audio-1-1-1-1/dp/1689035 Which looks even better suited to what you want (and cheaper too). Just cos they say PCB mounted doesn't stop you soldering wires directly on the pins does it? :) -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
