Recent content by D_Dean

Thanks I'll check it out and get back to you if I have any more problems or questions. Thanks, Derek

My buddy works at an extremely small (4 guys and a room) computer parts recycling and disposal place. They want to be able to take apart old monitors but are afraid of the potential shock from the main caps. I am told that the voltage can get up to 25,000 volts (I'm not sure of this value) and...

0/0 is undefined in our mathematics. In the event of an undefined solution you need use a different technique. You can either try to factor out stuff or in this case you have to use what is called l'hopital's rule (I am sure your text will go into that in the future). What the author was...

I guess the first question to ask is how powerful of a program do you want? What do you plan to use it for? I actually don't know too much about what's out there but I received Matlab for free from my school (as a TA) and love it. There is a ton of stuff it is capable of that I'm pretty...

Silvery surface is silvery because you can see the light with the wavelength of silver (which is a combination of wavelengths) bounce off of it and into your eye. The light that bounces off is not absorbed into the surface therefore does not transfer energy into the surface. The black surface...

Actually, I'm having a little problem conceptualizing it right now to be quite honest. I'll have to think back. Basically, it has to do with the fact that at steady state (when you have no Va and the diode is just sitting there with no external components connect) the voltage measured across...

You are correct, I hope that I haven't made too many errors involving the semantics. I appologize, though the main points are still valid. Now I see the issue. Phi is indeed the drop across the semiconductor junction, but since Vbi is going to be present regardless of the Va, Vbi doesn't...

I'm going to take this over to a car audio forum (don't know why I didn't think about that before). Thanks for you help. D Dean

Basically what I want to find is the auxilary remote turnon pin in the head unit. Looking at a pinout of the 13 pin DIN it appears as though there is a Mute pin, Acc Out (filtered power)?, Batt Out (filtered power)?, CD Stop, and the aux. Basically in the site below is the 13 pin DIN and what...

It was probably wrong of me to say potential, I didn't mean it as voltage, I'll explain here. The top band (Valance band) represents the electron potentials. As you move further and further up away from the valance band, the charge from the nuclei of the silicon atoms (or other semiconductor...

Firewire Power I have another related question if anyone is interested. I noticed that among the wires coming out of the car fusebox is a 12v power wire. Also, I saw the pinout of the ipod here: http://pinouts.ru/Devices/ipod_pinout.shtml You can see that there is a Firewire power...

Yeah, I was just hoping I wouldn't have to buy the 8 pin and RCA to 13 pin converter at all. Unless are you saying I could somehow test which pins in the HU are which with only the HU, DMM, and a couple resistors?

I appreciate the link, unfortunately I've been through most of those sites without any success. The problem is my HU, rather than having the 13 pin DIN (which seems to be pretty much standard) has the line-in pins in the RCA form. This means its an 8 pin DIN plus two RCA inputs. I was...

**Disclaimer: There is a ton of extra information here, mostly on the functionality of the diode and if you know most of it you can skip to the end. In all honesty I needed to go over most of it to remember how diodes worked and so I thought I'd type it out** It has been a little while...

I have a head unit (HU) for my car (Panasonic) with the ability to connect an external CD changer. The HU connection has an 8 pin DIN and a left and right RCA input for the external CD changer. I was hoping I could easily connect the left and right RCAs to my ipod and connect the 12v and...