Power supplies

[gladders]

Does anyone know if an Amiga 500 power brick will work with an Amiga 500 Plus, or would it kill it?

 

Ta very much

[RobertB]

Yes, an A500 p.s. will work on an A500+.

 

FCUG celebrating 34 years this month,

Robert Bernardo

Fresno Commodore User Group

http://www.dickestel.com/fcug.htm

[carlsson]

All desktop Amigas from the 500 to the 1200 have the same pinout and voltages. The lighter, switched mode power supplies to later Amiga 500 and the 500+ are rated for slightly higher effect than the previous as well as later suppies, so back in the day some Amiga 1200 users preferred to use a 500 supply as it would give a little extra juice for your power hungry expansions.

[Laner]

To piggyback on this discussion; I have an A1200 with an ACA 1231 expansion (68030, 42Mhz, 64MB) which came with a custom power supply from Amigakit. Now, it works fine, but the fan in the PSU is ridiculously loud.

 

I *also* have an A600 power supply which seems to work fine with the expanded A1200 - it will run AGA games via WHDLoad, etc. Will this cause problems if I continue to use it?

Edited December 7, 2015 by Laner

[RobertB]

Laner wrote:

 

> I have an A1200 with an ACA 1231 expansion (68030, 42Mhz, 64MB) which came with a custom power supply from Amigakit. Now, it works fine, but the fan in the

> PSU is ridiculously loud.

 

Why don't you replace the fan with a quieter one?

 

> I *also* have an A600 power supply which seems to work fine with the expanded A1200 - it will run AGA games via WHDLoad, etc. Will this cause problems if I

> continue to use it?

 

Hmm, a bit under-powered but if you are not having any problems (like no boot-up or partial boot-up) with that combo, then you are good.

 

Truly,

Robert Bernardo

Fresno Commodore User Group

http://www.dickestel.com/fcug.htm

[Laner]

Laner wrote:

 

> I have an A1200 with an ACA 1231 expansion (68030, 42Mhz, 64MB) which came with a custom power supply from Amigakit. Now, it works fine, but the fan in the

> PSU is ridiculously loud.

 

Why don't you replace the fan with a quieter one?

 

 

 

The power supply does not have a typical 3 pin fan connector - the existing fan leads are soldered directly into the board, and my soldering skills are non-existent. And I had the A600 supply readily available. But I may look for someone to do the mod eventually. Thanks for weighing in!

[+OLD CS1]

 

The power supply does not have a typical 3 pin fan connector - the existing fan leads are soldered directly into the board, and my soldering skills are non-existent. And I had the A600 supply readily available. But I may look for someone to do the mod eventually. Thanks for weighing in!

 

Wire cutters and electrical tape it is, then!

[towmater]

I put one of these under my A500's floppy drive. No noise, no problems using it so far. Bad idea? It seems too good to be true.

http://www.amazon.com/gp/product/B00HLCT9HK

[carlsson]

Possibly the -12V is on the weak side with the picoPSU. I read the manual, and it states it has a max load of 0.05A with peak at 0.1A, while original Amiga power supplies are rated for 0.1A on that signal. The difference is hair thin though, and frankly I don't know what the Amiga uses the -12V for. The specs for +5V and +12V are more than enough. I take it you made some internal modification or pull out a cable to connect to the power input on the motherboard?

[towmater]

I take it you made some internal modification or pull out a cable to connect to the power input on the motherboard?

 

I put a standard wall-wart dc jack next to the joystick ports, and wired the psu outputs directly to the original psu's input (so that original jack still works as well.) I wanted it to be minimally invasive. I use a beefy 1V 3A laptop power brick to supply voltage.