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Connect IPOD audio output to old rotary telephone ...
https://electronics.stackexchange.com/questions/25389/connect-ipod-audio-output-to-old-rotary-telephone
The remaining voltage drop occurs over the copper wire path and over the telephone company circuits. These circuits provide from 200 to 400 ohms of series resistance to protect from short circuits and decouple the audio signals. To ring your telephone, the phone company momentarily applies a 90 VRMS, 20 Hz AC signal to the line.
Ipod Internal Modding What is this TDF6 output IC? | diyAudio
https://www.diyaudio.com/community/threads/ipod-internal-modding-what-is-this-tdf6-output-ic.181722/
Before bypassing this output circuit I had the ipod working with some better capacitors in the DAC and in the power supply, and it sounded epic! I would really like to know what this TDF6 IC is if anyone can find a data sheet or …
The Opa! Amp - IPod Amp for Aux-In : 11 Steps (with ...
https://www.instructables.com/The-Opa-Amp-iPod-Amp-for-Aux-In/
The transcoding changes the output audio and not for the better. Contender 3: Line Out The iPod / iPhone and a few other players offer stereo line out through a dock connector / dongle. The line out usually connects to the audio chain before the headphone amplifier, so that’s a good thing.
Digital output from iPod - How's it done? | Steve Hoffman ...
https://forums.stevehoffman.tv/threads/digital-output-from-ipod-hows-it-done.234974/
Even using the bottom port, you are not automatically getting the digital output. Think of all the $50 "iPod boombox docks" out there. Those certainly get the audio via analog. I think it is because certain pins use analog, but somehow Wadia tapped into the digital busses, or piggy-backed on the data side like how the iPod updates from iTunes.
How much power does the iPod output? - Apple Community
https://discussions.apple.com/thread/410159
Chris CA fould somewhere that the ipod power amp is capable of 60mw - that is its maximum power output. Minimum is obviously 0mw. This still won't tell you how well it will drive a particular device, the best way is to try it. Take whatever headphones you are planning to use to an Apple store, they will probably let you try it on an ipod.
Which iPod has the best quality audio? - Page 2 of 2 ...
https://www.macintoshhowto.com/ipod/which-ipod-has-the-best-audio-quality.html/2
Red Wine Audio offer mods of the 4th gen and 5th gen iPods where they will replace the output section of the iPod with high quality Black Gate NX-Hi-Q capacitors. According to onheadphones.com the output audio quality rivals that of $1500 CD-players, with improved bass response and clear high end.
Apple iPod, iPhone (2g, 3g), iPad Dock connector pinout ...
https://pinouts.ru/PortableDevices/ipod_pinout.shtml
The iPod Touch 3G: may also require for Pins 1 and 2 (GND and audio out GND) to be connected in order to output audio (Pin 11 to GND). Works with appr. 500 kOhm between pin 21 and GND. The iPod Touch 2G requires Pin 11 to be connected to Pins 15/16; then connect that to Pin 21 with a 68 kOhm resistor to use the audio line out. This is because the device needs to …
Tube radio iPod amplifier - Page 1 - EEVblog
https://www.eevblog.com/forum/projects/tube-radio-ipod-amplifier/
1) Impedance matching: the output of the iPod and the input into the first audio stage of the radio have very different impedance. The audio transformer, in addition to the previously-mentioned isolation, will help correct this. A 1:1 will work, a 10:1 normally used for audio output will work better, especially with the gain.
My iPod audio amp | Electronics Forum (Circuits, Projects ...
https://www.electro-tech-online.com/threads/my-ipod-audio-amp.95198/
Hi guys, Here's some pictures of my iPod amp I built a year ago. It's based on a very simple circuit based on Toshiba TA7368P IC which works well at a supply range of 2v-9V providing around 1W max. I used 4 x AA 700mAh rechargeable batteries. Everything built inside a telephone surge...
A list of Simple audio circuits and amplifiers for DIY(Do ...
https://www.circuitstoday.com/simple-audio-circuits
2. 100 Watt Audio amplifier based on TDA7294 – This is an IC based (TDA7294) amplifier circuit which can easily deliver 100 Watts RMS output into an 8 ohms speaker. The TDA7294 has low noise, low distortion, good ripple rejection and can be operated from a …
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