Modern Power Supply to replace the bricks of old

[TZJB]

1 hour ago, TGB1718 said:

Would be ok for an 800 and 400, maybe 1200XL too, but I wouldn't use one on a 1050, it's about 1 amp short of the Atari ones,

it might run ok, but I would think it would get very hot.

 

I agree as the Atari 1050 power supplies part number C060592-34/TM 7498  are output rated for 9V 27VA 50Hz for continous use in the UK. 17 Watts seems 10 Watts less than factory requirements.

[Beeblebrox]

18 minutes ago, TZJB said:

 

I agree as the Atari 1050 power supplies part number C060592-34/TM 7498  are output rated for 9V 27VA 50Hz for continous use in the UK. 17 Watts seems 10 Watts less than factory requirements.

That is why I don't use my aforementioned 9v AC 2amp 18va with the likes of the 1050 or 810 drives.

[mutterminder]

Since the 800 has a bridge rectifier on the input, you don't actually need an AC voltage to run it.  I haven't tried it, but as long as it had enough current capacity, you should be able to safely use any supply between 13-15VDC and polarity would not matter.

[TGB1718]

2 hours ago, mutterminder said:

Since the 800 has a bridge rectifier on the input, you don't actually need an AC voltage to run it. 

Don't think it will produce the -5VDC from a DC input

[Panther]

For what it's worth, these seem to work well, though are only 18W output.  They probably make others though.  These are sold for some music devices.  They likely make higher current versions.

[mutterminder]

23 hours ago, TGB1718 said:

Don't think it will produce the -5VDC from a DC input

Yes, you are right.  You still need AC to produce the -5vdc.  So you couldn't do this with a stock 800, as you need the -5vdc for the 4116 RAMs.  However if you've upgraded to a modern memory solution this would work.