How to test a PSU?

Franc Zabkar wrote:
On Sat, 29 Dec 2012 16:08:42 -0500, Paul put
finger to keyboard and composed:

The aluminum ones are nice when you can get them.

I, too, try to make do with what I have at hand. One other possibility
is a water cooled 12 ohm resistor. That should dissipate 12W on a 12V
supply. You can find them in 1200W 120V electric kettles. They're
called heating elements. :-)

In fact you don't even need to dismantle your kettle. Just make a
suitable AC-DC adapter cable.

- Franc Zabkar

Yes, I can imagine a half-dozen kettles on my bench now :-)

Paul

"Paul" wrote in message
...
Franc Zabkar wrote:
On Sat, 29 Dec 2012 16:08:42 -0500, Paul put
finger to keyboard and composed:

The aluminum ones are nice when you can get them.

I, too, try to make do with what I have at hand. One other possibility
is a water cooled 12 ohm resistor. That should dissipate 12W on a 12V
supply. You can find them in 1200W 120V electric kettles. They're
called heating elements. :-)

In fact you don't even need to dismantle your kettle. Just make a
suitable AC-DC adapter cable.

- Franc Zabkar

Yes, I can imagine a half-dozen kettles on my bench now :-)

Paul

And if you do enough testing, you could have many cups of tea :-)
--
SC Tom

Doc docsavage20 yahoo.com wrote:

I have a PC Power and Cooling 470W unit that's a few years old
but hasn't had a lot of mileage on it and the rig it was in
didn't come near to stressing its limits. It was modestly pricey
when I got it so I figure it's worth seeing if it's still
working the way it's supposed to. If I want to ensure it's not
doing anything that might fry a h/d - voltage spikes
perhaps...or? - is there a way to test it, or someplace you
trust to send it for testing?

Send a $50 power supply for testing? Not practically.

If the power supply works... Plug it into a system and use a
voltage measurement utility to see how the power supply is doing
under normal loads.

--












Thanks.

On Sun, 30 Dec 2012 22:36:53 -0500, "SC Tom" put finger
to keyboard and composed:

"Paul" wrote in message
...
Franc Zabkar wrote:
On Sat, 29 Dec 2012 16:08:42 -0500, Paul put
finger to keyboard and composed:

The aluminum ones are nice when you can get them.

I, too, try to make do with what I have at hand. One other possibility
is a water cooled 12 ohm resistor. That should dissipate 12W on a 12V
supply. You can find them in 1200W 120V electric kettles. They're
called heating elements. :-)

In fact you don't even need to dismantle your kettle. Just make a
suitable AC-DC adapter cable.

- Franc Zabkar

Yes, I can imagine a half-dozen kettles on my bench now :-)

Paul

And if you do enough testing, you could have many cups of tea :-)

You could also use the kettle as a dummy load for your amplifier. Then
you wouldn't need to wait as long between cups. :-)

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.