I've cut a slit in the bottom case to bring out the cart slot wiring. And finally after much careful, nerve wracking cutting I've managed to get the board small enough to fit entirely flush inside the case I will be using for the body. Just need to trim the cart wiring shorter and do the final video and audio wiring with shielded wire to prevent interference. Then I can do more fun stuff like working on the buttons, audio and speakers, and lcd. I'll leave the battery, regulation, and charging till last. I'm making good progress. Check back for updates. ... https://www.youtube.com/watch?v=kyhC8dSlHCM

In this video I go over the age old problem that modders face when tinkering with decades old gameboys: adding extra circuitry often causes some level of interference/added noise to the audio speaker/headphones. While this may not be an issue for some this could be an annoyance while playing in a quiet area or with headphones. This can be caused by a number of problems ranging from digital switching noise and inadequate shielding, increased power draw from the internal 5V gameboy supply that was never designed to power extra circuitry, and/or crusty capacitors that have dried out and don't work as well as when they were new. My hypothesis is that modding a gameboy will increase the noise floor but adding to/replacing the original capacitors with ones with a larger value can help to reduce the added noise to an acceptable level. To test the relative noise levels I have a stock rev 6 grey dmg which is unmodded and has it's original caps (control), a clear rev 8 play-it-loud with my RGB chip and original caps (modded but no fixes applied), and finally a black rev 8 play-it-loud with my RGB chip and additional 660uF of capacitors that can be switched into the circuit while the gameboy is on (test case with fix applied). The raw audio recording of the three cases examined using the free windows version of audacity in this video can be found here: https://mega.nz/#!qNgGRICb!_vmJpMBMpAIYtZcnSSTXcexHrqBCrgakNjCcz6Ch-D8 Note these are my own experimental findings on my personal collection of DMGs and may or may not correspond to yours and while I tried my best to be scientific in my testing I do not have a soundproof room so these results are at best qualitative. However that being said there is a noticeable improvement in the switching noise after adding the additional capacitance to the 5V rail. So if you are experiencing an annoying buzz/background hiss on your gameboy try adding some extra capacitors and see if that helps! Thanks for watching and feel free to discuss in the comments below. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ I've posted a link for Ebay purchase referrals. If you use the link below then I get a small kickback from your purchase (it will cost you nothing, I just get paid for referring customers). http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5575215675&toolid=10001&campid=5337943740&customid=&mpre=http%3A%2F%2Fwww.ebay.com%2F Special thanks to Eric Skiff for freely providing the music used in this video off his album Resistor Anthems. His music can be found at http://ericskiff.com/music/ Visit my site: www.diytronics.blogspot.com My RGB Gameboy Backligh ... https://www.youtube.com/watch?v=dRp4r-eqNmM