24 Aug
2014
24 Aug
'14
6:17 p.m.
I only test PC style supplies and keep some wire-wound resistors like these
http://www.ebay.co.uk/itm/351150912079
for dummy load.....
... not sure if they draw enough current to test yours.
http://jumperone.com/2011/06/atx-power-supply-tutorial/
Dave
G4UGM
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Robert Jarratt
Sent: 24 August 2014 22:24
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Test Loads for Power Supplies
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Fred Cisin
Sent: 24 August 2014 22:03
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Test Loads for Power Supplies
On Sun, 24 Aug 2014, Robert Jarratt wrote:
out.
I have some machines which I have had a while and
which I have yet
to power on. I am a little wary of just switching them on and hoping
they will work, being concerned that if they are not right they may
damage something in the machine.
Since a switched mode PSU needs a load to work properly, what do
people use as a dummy test load for power supplies?
an old automotive headlight.
I was so stingy, that I saved a two filament bulb when one filament
burned It no longer had a "low" beam, but the
"high" beam provided a nice load.
It
also gave some extra light on the workbench.
I forgot to mention that I have used car/motorcycle bulbs before, but I find
them a bit awkward to work with.
Regards
Rob