Re: 1:1 transformer (for audio isolation)
Posted: 23 May 2018, 22:37
Thanks for the suggestionmauman wrote:I've successfully used the Xicon 42TM018-RC transformer, which is 1:1 with 10k impedance on both sides. Data sheet: http://www.mouser.com/ds/2/449/XC-600134-1212477.pdf I got mine for less than 4 bucks each at Mouser. The data sheet says the 3dB frequency response is 300Hz to 3.4kHz, but don't be afraid of that - after adding enough gain to bring it back it unity, my application measured quite flat to 10kHz. I got the idea from this circuit: http://www.geofex.com/FX_images/TransformerSplitter.pdf , you could adapt it from a splitter to a single in/out for isolation. Regards, Mike
I think I actually have an ABY box that uses those ( https://buildyourownclone.com/collectio ... mpselector )
R.