Best Upconvertingblu-ray Player 2010

De Elevator

My idea seemed simple: power listen to a mono source to stereo headphones. But when you plug the headphones into my old tv only hear the left ear! Let's look into the problem and solution.

The history of the mono jack

type connectors jack (TRS)
are very common, in different sizes:
jack (6.35mm 2) mini-jack ⁽ 3.5mm 2) and sub- ^{mini-jack (2.5mm} 2). In turn, there are mono (TS), stereo (TRS) and 3 channels (TRRS). ^{When designing standard connectors only thought mono, single channel. Connection outermost, as usual in electronics corresponds to the mass. By adding a second channel, the only way to make this possible was a piece by subtracting the mass area.}



The problem with this design is that the stereo headphones connect to a single source only hear the left earpiece. If everything had been designed differently from the beginning might have avoided this problem (having made the shorter the piece of dough from scratch).


to stereo converter
Vista
theory, how to spread a mono source to a stereo is to make our own the missing link of the right channel. To do this I built this device with a mini-jack Old

spectrum (it is no sacrilege because the cable was broken anyway), a joint statement and a baratunas alligator.

The
mini-jack plugs into my old TV, and cling alligator this:
A ground (G). Another that caught

simultaneously connectors L and R.
In this way the signal is effectively shared by both headphones.

Mono and stereo with the same device

The last time I needed something like a simple device that could support both mono and stereo headphones (listening to each earpiece). It is impossible to correct in a simple, but you can do so sloppy with a small resistance (if I remember correctly about 10 Ω). All connected to a female mini-jack
stereo.
The only problem is that it lowers the impedance of the mono hulls, making a stronger voice low, and the right channel stereo headphones listening to lowest.


solution I think more accurate would have been to separate amplifiers for each channel, and even a short circuit detector to avoid causing suffering electronics. But that is beyond me.