Topic: WTD : ATARI 7800 Power Supply  (Read 5393 times)

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Offline comicbooknerd

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WTD : ATARI 7800 Power Supply
« on: October 01, 2012, 07:18:28 PM »
Hi Guys,

Im buying a really nice 7800 of a mate with a ton of games but just need a power supply if anyone can help at all? Im after a UK one.

Also do some of 2600 games only work with the classic Joystick? If so Id appreciate one of those too if anyone has one for sale.

Thanks!

Offline Phu

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Re: WTD : ATARI 7800 Power Supply
« Reply #1 on: October 01, 2012, 07:34:52 PM »
Don't know of any genuine ones, but I might be able to supply a new-build PSU. It's dependent on whether I can make a connection that will fit the unusual input plug on the 7800.

I'll need to check pin spacings etc with with RCM's 7800 on Saturday, but assuming I can build a connector, a new PSU is likely to be in the region of £14.95 (new build, not old/refurbished stock).

-- Richard
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Offline comicbooknerd

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Re: WTD : ATARI 7800 Power Supply
« Reply #2 on: October 01, 2012, 07:36:41 PM »
Hi,

Thats brilliant thanks. I hadn't realised how awkward they were till I looked at it today! If nobody else has one ready to go id probably see if youd make me one :)

1200xl

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Re: WTD : ATARI 7800 Power Supply
« Reply #3 on: October 01, 2012, 09:27:02 PM »
might be easier to change the socket on the 7800 to a barrel type, then just use an off the shelf PSU.
As for the joysticks, you only need the 7800 pain line sticks or the horrible cx-78 pads for two button 7800 games, you can use the same controllers for the 2600 game library, but both fire buttons act as one.
Any Atari 2600 compatible stick can be used for 2600 games as well as the vast majority of 7800 games, there are only a few that require 2 buttons.
You can also use Sega MegaDrive pads, but again only in one button mode. There is a pretty simple converter that you can build to make 2 buttons work.http://www94.pair.com/jsoper/7800_gen_adap.html
Personally I love my converted NES pad or my radica space invaders stick conversion :)


Offline comicbooknerd

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Re: WTD : ATARI 7800 Power Supply
« Reply #4 on: October 01, 2012, 10:14:17 PM »
might be easier to change the socket on the 7800 to a barrel type, then just use an off the shelf PSU.



I am very noobish when it comes to modding this sort of stuff, having never looked inside one. I can presume it would just be the actual socket end I would need to change? Would a regular power lead for say a SNES then be able to work on this?

1200xl

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Re: WTD : ATARI 7800 Power Supply
« Reply #5 on: October 02, 2012, 04:32:58 PM »
I don't know the spec for a Ned psu, but if the voltage and polarity are the same ant the ampage is the same or greater, then yes. You would need to de solder or clip the 7800 power socket and replace with the correct size barrel connector .
The other option is to ass rig it, just solder the psu direct to the pads on the motherboard, costs nothing :)

Offline MrTrev

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Re: WTD : ATARI 7800 Power Supply
« Reply #6 on: October 07, 2012, 09:58:18 PM »
might be easier to change the socket on the 7800 to a barrel type, then just use an off the shelf PSU.

Hell yes, this is the way to go! I've modded both my 7800's to accept alternative power if the originals go pop!

Offline Phu

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Re: WTD : ATARI 7800 Power Supply
« Reply #7 on: October 08, 2012, 10:34:44 AM »
Incidentally, I checked the pin spacing on the Atari 7800 connector. You can get a standard two-pin connector that will fit it (like the connectors for "HDD LED" and "PWR LED" on PC motherboards). If you're really polarity-conscious, you can glue a small piece of whatever material you have to hand to fill the "notch".

So in fact, it wouldn't be hard to modify a standard power supply to fit the original socket.

-- Richard
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Offline comicbooknerd

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Re: WTD : ATARI 7800 Power Supply
« Reply #8 on: October 12, 2012, 04:06:22 PM »
Thanks to everyone for all the help, think i'll just try modding it by changing the connector to a barrel fit!

Cheers!