In article , Jim Lesurf
wrote:
[snip]

Now if we'd connected the mp3 player to the FM TX *directly* with no
transformer it would only have had to supply 0.01 mA for 100 mV as the
load it would be presented with would be 10kOhms. But with the
transformer in place the mp3 player has to supply ten times as much
current to give the required power for the transformer to be able to
present 1V to the FM TX.

Oops! Sorry, the above para was probably confusing. It muddles together
some different points without distinguishing properly! Simplest to ignore
it when reading the rest of the posting. :-/

Afraid I was half asleep when I wrote it. Apologies.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html