20 Jun
2012
20 Jun
'12
1 a.m.
The H7441 is +5, 32 amp but the H744 is +5 25 amp if my brain is
working well today. It should work ok in the 11/04. I have both, but I
see you are located in NZ.
Paul
On Mon, Jun 18, 2012 at 7:52 PM, Andrew Quinn <jaquinn2001 at gmail.com> wrote:
Thanks Tony and Rob for the comments. ?I have a good
selection of high
wattage wire wound resistors so will use these to load test the supplies.
Started on the H7441 5VDC regulators by removing the 24000uf capacitors and
tried charging them at 40v with 5ma. ?One charges up fine... the other
won't and the multimeter suggests an internal short. ?Not sure if this
failed in service or from sitting around.
Unfortunately I only have the two H7441 modules that came with the machine
so will need to go hunting for replacements. ?New ones can be had for about
NZ$60 from RS Components here in New Zealand but any recommendations on
alternative sources would be appreciated.
Regards
Andrew