2
votes
1answer
278 views

Audio Signal Switching Transistor For Shutter Release

I am a complete novice when it comes to electronics but I am trying to open a transistor when there is audio coming out of my iPod, completing the circuit for my dslr and releasing the shutter. I ...
0
votes
2answers
219 views

Connect IPOD audio output to old rotary telephone

I hope you could help me. I want to connect the audio output of an IPOD to an old rotary telephone. The telephone is not connected to the telephone line, it's just a fancy design thing I would like to ...
1
vote
2answers
393 views

How can I actuate a relay coil from a headphone jack's internal SPDT?

I want to plug my iPod which in turn supplies power to an external audio amp while sending iPod audio signal to same amp. Is it possible to wire an 1/8" (3.5mm, mini) stereo jack in such a way that ...
1
vote
3answers
308 views

iPod connector car control

I recently bought a car with an iPod dock. When I plug in the iPod disables and I am forced to control it with the car's audio controls. I want to get around this. Can I simply yank pin 21 from an ...