26 Apr
2011
26 Apr
'11
2:02 p.m.
On 4/26/11 4:56 PM, Rob Jarratt wrote:
Interesting you should mention the PDP11. The PSU I
need to test is from a
PDP11/24, it is a H7140. I think it is Switched Mode, but it is pretty heavy
and rated at 1200W which makes me wonder (I have no experience of other
PDP11s, this is my only one, so I don't know how typical this is, but it is
a far cry from the PSUs in my MicroVAXen).
Hey, that's the same monstrously complex power supply as is used in
the 11/44. It is in fact a switcher. Tony can speak volumes about this
particular power supply.
Any idea if this PSU needs a dummy load to check the
voltages?
I'm almost positive that it does, yes, at least on the +5V output.
-Dave
--
Dave McGuire
Port Charlotte, FL