magnusfalkirk
Experienced Member
Okay, for some reasom I thought your computer was an 800xl, my bad. I did look around The Brewing Company's website and found this:
It's a replacement power supply for the 400/800 and it costs just $20 bucks plus shipping. SO depending on where you live it shouldn't take long to get this and have your 800 up and running.

TBA's Replacement Power Supply for Atari 400/800/1050/XF551/1200XL
This supports the following Atari items: Atari 400 Computer Atari 800 Computer Atari 1200XL Computer Atari 1050 Disk Drive Atari XF551 Disk Drive Atari PCF554 Disk Drive It is 9VAC 1.5A. It should put out all the power you need, however, if you need a beefier supply, contact us. This is...
thebrewingacademy.com
It's a replacement power supply for the 400/800 and it costs just $20 bucks plus shipping. SO depending on where you live it shouldn't take long to get this and have your 800 up and running.