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The Apple diyMod: My Take on the Famous iMod [56k killer] Featuring 3G, 4G, 5G and nano 1G! - Page 178

post #2656 of 2999
Woah 3F? But only 2.3v? Don't you need at least 6.3V to be safe?
post #2657 of 2999
Quote:
Originally Posted by Athur126 View Post

Woah 3F? But only 2.3v? Don't you need at least 6.3V to be safe?


Well it's a trial and error thing, and I am willing to donate one ipod for experiment. But not sure if there will be any harm to my amp and/or iem's.

post #2658 of 2999

The guy mentioned that he was using 470uf caps idk whats the voltage.

post #2659 of 2999
Don't care anymore. When the caps come in I will switch them with other caps in one of my iPods. Just hope the iPod won't explode.
post #2660 of 2999
is there currently anybody in the uk who can perform this and would be willing to do so?? thanks
post #2661 of 2999
Do u need to change the back panel to the 80gb one if I wanted to use film caps?
post #2662 of 2999
Quote:
Originally Posted by Athur126 View Post

Do u need to change the back panel to the 80gb one if I wanted to use film caps?

If you've swapped the internal hdd for the cf card, there'll be enough space in the 30gb back for the film caps.

post #2663 of 2999
Quote:
Originally Posted by jerein View Post

If you've swapped the internal hdd for the cf card, there'll be enough space in the 30gb back for the film caps.

Depends on the exact size/brand of the film caps, etc. They are all different sizes. A 2.2uf...sure, that's pretty safe to say it may fit. But you start getting up to 4.7uf you're looking at pretty tight squeeze. So, just saying a "film cap" will fit is a bit vague. Electrolytic caps though will pretty much fit inside no matter what. But don't sound as good, imo wink.gif

And guys, don't go all willy-nilly picking out values. 3f? Whoa is right. There is a formula to choose the proper value that won't mess up your frequency response. For the voltage rating- the cap will only block DC up to its rating, and that's the whole reason we're using caps, right? To block DC. I would be weary of 2.3v myself.

That said, I am curious to hear how a "super" cap may sound. Looks a bit just like an electrolytic?

Here's a handy calculator to help solve for the proper capacitor value:

http://www.v-cap.com/coupling-capacitor-calculator.php
post #2664 of 2999

I realized the supercaps are electrolytic caps and have the weird numbers for the capacitance and voltage. Since it's super, why not give it a try? wink_face.gif  Let's just hope this won't turn out to be a supercrap. :) 

 

On the film size, if you use the 4.7uf's as I have been using then don't even try to fit them in the thin model.

post #2665 of 2999
They do say "super"...smily_headphones1.gif .....that and your levitating iPods should produce some otherworldly synergy!

Personally, I'm holding out for "uber" caps and then trying to replace the iPod hard drive with a small piece of brain tissue that can work with your levitation tech. This should be able to bypass caps and wires and cables and headphones altogether and telepathically transmit the music from the iPod to your cerebral cortex. Talk about a pure signal!

I've got a few more things to work out though. Like a brain tissue donor and telepathy. I'm probably going to need a lab coat and crazy hair as well. So sit tight.
post #2666 of 2999
Oh, and Dminor is right, 4.7 film caps won't fit in a thin back. Aaaaaalmost, but not quite. 

For anyone who cares, here is a dock connector I did recently. The user wanted to retain the stock hard drive and use film caps. So I hollowed out the dock and were able to fit them inside. Lucky they were 2.2 uf as they were pairing with an amp that had (edit:) 50k input impedance. So 2.2 was all it needed. Slightly bigger may even fit in there (3.3?) but that's just a guess. 
















Edited by thegrobe - 7/26/13 at 6:39pm
post #2667 of 2999

I want to a pre order for the super ipod now. :)

post #2668 of 2999
Quote:
Originally Posted by DMinor View Post

I want to a pre order for the super ipod now. :)

 

Send me a chunk of your brain in a cooler. I'll  get started. Throw some poke in there while your'e at it! A guy's gotta eat. That's what I miss most about Hawaii. Poke. Mmmmm

post #2669 of 2999
Quote:
Originally Posted by thegrobe View Post

Oh, and Dminor is right, 4.7 film caps won't fir in a thin back. Aaaaaalmost, but not quite. 

 

For anyone who cares, here is a dock connector I did recently. The user wanted to retain the stock hard drive and use film caps. So I hollowed out the dock and were able to fit them inside. Lucky they were 2.2 uf as they were pairing with an amp that had 100k input impedance. So 2.2 was all it needed. Slightly bigger may even fit in there (3.3?) but that's just a guess. 

 

 

 

 

Nice job my friend. But you forgot to throw in some Kermits there. LOL.

 

Quote:
Originally Posted by thegrobe View Post

 

Send me a chunk of your brain in a cooler. I'll  get started. Throw some poke in there while your'e at it! A guy's gotta eat. That's what I miss most about Hawaii. Poke. Mmmmm

 

How about this nasty Hamachi? Don't let the looks fool you. :)

 

post #2670 of 2999
The kemets in the same size were physically larger, at least according to the spec sheet on mouser. Otherwise those would have gone in there.

I'm actually going to get rid of the giant caps in the one iPod (you can see it in the back of that one picture) going to try the kemet (kemit? Kermit?) in that one so I can compare identical iPods but one w/ Wima and one w/ kemet.

Whatever is better will go in both iPods then probably sell one off.

As far as the Hamachi, that'll work. Although it does give me flashbacks of a porta-potty at a Grateful Dead show.
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