7 Nov
2010
7 Nov
'10
2:19 p.m.
Tony Duell wrote:
I get a bit fanatical about testing anything that I'm parting with - I don't
like the idea of the recipient finding a problem that I could have found
myself and told them about. That's always meant I've had a pile of
"extensively tested" stuff, and a pile of "untested because I haven't
had the
time".
I suppose it's not impossible to encounter that situation at a radio rally,
car boot sale etc. although I must admit that it's tempting (as a buyer) to
merge the sold-as-seen and I'm-going-to-get-screwed categories :-)
The behavior should presumably be pretty much the same for a 3.5" or 5.25"
drive (depending on media coercivity - I don't recall what 3" is now); maybe
it's worthwhile Phil sanity-checking observed readings against a drive that he
does have around, if he doesn't have a known-good 3" drive handy?
cheers
Jules
On 06/11/10
20:03, Tony Duell wrote:
I suspect, and suspected at the time, that you areperfectly correct :-)
Before we get another flamewar, I will point out that just about every
seller I've dealt with at radio rallies has been extremely honest. If
something doesn't work, they say so. If it's missing important parts,
they say that too. Aha...This remionds me ao a character I saw at a
couple of radio rallies
many yearsa ago. He had a pile of working hard drives. And another pile
of ''untensted' hard drives. Hmmm...
Read as: "I've tested
all of these, but I'm selling the broken ones as
'untested'." Ah, my multimeter lives on the workbench.
Mine's always bouncing between house, workshop and garage - I'm rapidly coming
to the conclusion that I need three of everything :-(
I'm seeing
around 2V on all three pins of the head -- 'top', 'bottom'
and the centre tap. If I switch to AC coupling, 200mV/div, I see what
looks like a very noisy sine wave on the centre tap, and then the coils
Trhis is for the selected head? That can't be right!~~~~~~~~~~~~~~~~~~~~