I have a 3.5mm audio jack with a switch build in. When you plug a jack in the switch opens. I would love to use this build in switch as a power on switch for a small device so when i plug in a head phone jack it closes a circuit and powers on the device. I don't know how to use the open circuit...

I have a Cambridge Soundwork id100 which comes with a Toslink out, SPDIF out, and a proprietary Camrbidge out. I was hoping to connect this to the input on my Bose Wave Radio, which I believe only has a 3.5mm Aux in. I am wondering if this can be done with a wire. The Bose must have a DAC in...

Is it this one from monoprice? http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10218&cs_id=1021804&p_id=665&seq=1&format=2 Does walmart, radioshak sale them cheap?

... at a reasonable price. I've found one, but with shipping it's $26. That sounds a bit on the high side. I don't see any at monocables.com or anywhere else for that matter. Seem like there are plenty of stereo cables, but mono cables appear to be rare. Specifically I need a 25' 3.5mm mono...

Although this is technically off topic, I thought I'd post it anyway for those who are interested in film restoration. "The Sand Pebbles" just completed it's restoration. It's historically important in that it was the first film to restored at 4K resolution. Previous restorations were all at...