On May 14, 2012, at 3:56 PM, Tony Duell wrote:
I would strongly recommend 'meggering'
the transformer after giving it a
preliminary clean-up. If you've got insualtion troubles, it may not be
worth doing anything more with it.
[Does the term 'megger' mean anything across the Pond? Over here it's a
common term (actually a trade name that's become generic) for a
high-voltage insulation tester]
Not a term that I've heard of. Sounds like swearing to my ears. :-)
Hmmm.. What do you call a high-votlage insulation tester? The sort of
instrument you'd use to check for leaks/breakdown in hose wiring (please
don't tell me you don't test such things over there)
replaced.
I don;'t know... Fans can be stripped, cleaned and rebuilt. May not be
worth it, it depends on how much time you have, and how much you want to
keep original.
Fans are also often easily replaced by copies that are "close enough".
I've no idea what's in an 11/35, though.
Most older PDP11s just used 120V AC fans run of the mains side of the
power transformer. The exception, of coruse is the 11/44 (And 10.5"
11/24) which has thsoe odd 35V 70Hz things.
That said, I do like to keep things as original as I can. I do repair
fans. Although I dont; normally rewind mains ones, I certainly rewind 12V
ones, repair the control eelctronics, replace bearings, etc. It's the
principle of keeping as much of the oiginal machine as I can.
At least
I've cleaned out the mouse nests. That's a start, I guess.
A cat is quite useful to prevent re-infestation :-)
True, but sometimes the cure can be just as much of a problem; we have
one cat who has taken to peeing on a lot more things than any vermin
A tri pto a vet to have his (this problem is normally caused by tomcats)
private parts adjusted/removed will often help with this. Not to mention
also helping with the problem of unwanted kittens.
ever have. If it weren't for the fact that
it's clearly because he's
scared to death of our other cat, he'd have had a date with a burlap
sack long ago. :-)
Err yes... I've been know n to say to muon (in totally the wrong kind of
voice, a grntle one) 'If you don't stop tripping me up when I'm carrying
a CRT, I am going to take you on a one way trip to the vet'. Of coruse I
am not, and no vet would euthenase a healthy cat anyway...
[ lest anyone think I am actually advocating cruelty
to animals, I am
not really suggesting such a thing; we do like our cats, and I'm sure
Ditto. I love having them aroudn me when I am fixing things...
our child will prove far more destructive than any cat
in time ]
-tony