Search found 137 matches

by sam_thornley
Wed Dec 15, 2010 6:36 am
Forum: 1990's Gaming
Topic: Stumped again
Replies: 11
Views: 2504

Re: Stumped again

What bacteria means by "TI card" is the Texas Instruments PTH08080 switching regulator. Or the PTH08000. There available as free samples from TI's website. I'm sure you've read people powering thier N64 portables with them. Seems to be a standard thing to use with N64 portables these days. You can s...
by sam_thornley
Tue Dec 14, 2010 11:11 am
Forum: News
Topic: Sam's Sega Megadrive Portable "The Mega-Boy"
Replies: 3
Views: 2998

Sam's Sega Megadrive Portable "The Mega-Boy"

Hey people, Finally got my Mega-Boy project finished yesterday. All complete and working! Specs: 5" PSone Screen (unmodded CCFL) with screen cover Uses a Sega Genesis 3 PCB, region modded for 50Hz PAL Cart Slot at rear of unit (carts stick out but i don't care :P ) Powered by 6x 1.2v 2600mAh NiMh Ce...
by sam_thornley
Tue Dec 14, 2010 10:23 am
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Re: Sam's Megadrive Portable

The project is now 100% done!! Yay!! :D Got the side panels added. Then wraped black tape around the edges rather than painting. Turned out quite nice overall. Some pictures: Side wall/panels added, hot glued into place: http://i108.photobucket.com/albums/n19/Sam_thornley/Megadrive%20Portable/DSC010...
by sam_thornley
Sun Dec 12, 2010 3:20 pm
Forum: News
Topic: Pkmnjunky7's Portable Super Nintendo
Replies: 8
Views: 6458

Re: Pkmnjunky7's Portable Super Nintendo

Very Nice, Awesome job :D
by sam_thornley
Sun Dec 12, 2010 3:12 pm
Forum: 1990's Gaming
Topic: Any Genesis 3 owners willing to sell to the UK?
Replies: 3
Views: 1154

Re: Any Genesis 3 owners willing to sell to the UK?

I don't have one to sell but i managed to get one from ebay earlier this year, for my Mega-Boy project. It was from the USA ebay.com. They are pretty much none existent here in the UK. Or on ebay.co.uk. Be prepared to pay quite abit for the shipping costs. If ebay is no good just try the BH trading ...
by sam_thornley
Tue Nov 30, 2010 3:42 pm
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Re: Sam's Megadrive Portable

BACK!! Yes I am still working on this project! Its just have not updated this post since july!! Been busy with lots of other stuff lately, some portable related some not. Right here's the August update that i posted over on moddedbybacteria forums but not here: The portable is 90% complete now. :D A...
by sam_thornley
Wed Jul 21, 2010 6:06 am
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Re: Sam's Megadrive Portable

You can get stereo from the Genny 3. There's a simple guide on Segasonicfan's site. Any progress? I know, but its not as easy as just pulling stereo from the sega cpu. Another op-amp has to be made then the signals from the board have to be fed in to both amps. Though i think feeding the signals to...
by sam_thornley
Wed Jul 21, 2010 5:48 am
Forum: Portable Screen Hacking
Topic: What causes...
Replies: 4
Views: 2262

Re: What causes...

If its the PSone screen your talking about:

Not enough amperage going to the screen with the volume up too loud, will shake the picture on heavy bass ect.
by sam_thornley
Fri Jul 16, 2010 5:29 am
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Re: Sam's Megadrive Portable - The Mega Boy

Oh yeah sidewalls i'm not sure yet. Maybe just some more fiber board. 8) Double post!! oops! :wtf:
by sam_thornley
Thu Jul 15, 2010 4:45 am
Forum: Technical Questions and Answers
Topic: Switching Regulators - Do they need filter inductors?
Replies: 2
Views: 980

Re: Switching Regulators - Do they need filter inductors?

Thanks Mario, :D i totally forgot about that optional 100uf capacitor on the data sheet. So i set my PTH board to +5v with a 300ohm resistor, added my two 100uf caps wired it up to my genesis 3 board. All works perfectly with no audio interference or anything 8) . I just didn't realise how nice clea...
by sam_thornley
Thu Jul 15, 2010 4:31 am
Forum: Portable Screen Hacking
Topic: Psone screen Backlight
Replies: 5
Views: 2329

Re: Psone screen Backlight

Are you powering the screen off batteries? They may not be powerfull enough. Usually the stock CCFL backlight shuts off if the screen does'nt get enough amperage. I think it needs around 650-700ma to run unmodded. Also check if the backlight plug is properly attached.
by sam_thornley
Tue Jul 13, 2010 12:00 pm
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Re: Sam's Megadrive Portable

Lookin' good! ...I'm totally digging that battery arrangement 8) Thanks, arranging the batteries took some thinking but i got there in the end. 8) Yes the Genesis3 is awesome! Only problem is no stereo :wtf: What do you plan on using for the sidewalls? No stereo sound doesn't really bother me in po...
by sam_thornley
Mon Jul 12, 2010 2:17 pm
Forum: Technical Questions and Answers
Topic: Switching Regulators - Do they need filter inductors?
Replies: 2
Views: 980

Switching Regulators - Do they need filter inductors?

I try to avoid using linear regulators in battery powerd portables. So I built a MC34063 switcher on some perf board to supply +5v to a Genesis 3 board. Works fine but it ended up too big to fit into my case. :( :facepalm: So i picked up some sample PTH08080's set to supply my +5v. As they are nice ...
by sam_thornley
Thu Jul 08, 2010 4:45 am
Forum: 1990's Gaming
Topic: My PSone portable
Replies: 55
Views: 13503

Re: My PSone portable

This ones looking really good so far :D Any updates?
by sam_thornley
Tue Jul 06, 2010 9:43 am
Forum: 1990's Gaming
Topic: Sam's Megadrive Portable
Replies: 12
Views: 6778

Sam's Megadrive Portable

Hey People, So I've started work on a Megadrive (Genesis) portable about 2 weeks ago. Proposed Specs: 5" PSone Screen - Anti-glare removed Sega Genesis 3 PCB Cart Slot at rear of unit 6x 1.2v 2600mAh NiMh Batteries (7.2v) Mspaint Mock-up: http://i108.photobucket.com/albums/n19/Sam_thornley/Megadrive...