Thanks Mike,
I think I'd prefer to stay clear of hybrid components. They don't do much for long term maintainability. I take it the 180's are better in that respect?
If I can get the 1742A for closer to $300 I'll go and take a look. The scope is in Melbourne, so perhaps reasonably unlikely that it is your unit?
cheers
Paul
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On 22/01/2007, at 1:33 PM, Mike wrote:
At 11:08 AM 22/01/07, you wrote:
Would a 1742A be a better option than 180series then? I've got the
opportunity to purchase one from a non-ebay source for $400AU without
probes or manuals. Does that sound like a reasonable .au price?
<cough> if its the one I sold, I'd say no as I recall the hybrid for the
vertical deflection was on the verge of getting erratic, that was the other
reason for selling... Other than that it was a great scope as I also
had the top multimeter option :) Which state are u in btw ? and is the
service manual in a red 3 ring binder ? *grin*
The original probes were quite good but didnt like to be kinked, the
single nickel steel wire was prone to breaking in older cro probes and
new probes are quite cheap now. If the vertical deflection on the
cro is close to calibrated dial settings then sure its worth it, I'd
probably make an offer (if it was in perth) but closer to $300 on
basis that the hybrids are not replaceable any more etc.
Let us know the serial number if you get it :)
Rgds
Mike
cheers
Paul
On 22/01/2007, at 1:13 PM, Mike wrote:
At 10:23 AM 22/01/07, you wrote:
The 1740A & 1741A 'scopes provides 100MHz capability in a smaller
package
with better triggering.
Had a 1742A for some 15 years bought from new, though first one I
got from HP
had a bad bow in the trace, they tried to tell me it was within
spec and that +-1.0 mm
is acceptable, suffice it to say I wouldnt accept it and told the
finance co at the
time the delivery was being rejected but HP had already rang the
finance co to report
it was ok without my signature !! I was really angry and
threatened to publish a
photo of the trace in the local paper. Within 4 hours got a ph call
from HP
apologising profusely and another unit with perfect straight line
trace turned up
about 2 weeks later from USA with freight at their expense,
<chuckle>
Dont think this was indicative of HP - more of the local management
and fact
that often in Australia we get the dregs of stuff made in Singapore
under HP's
trade name which doesnt pass Singapore tests, so its not shipped to
USA but
dumped here, happens more often than it should from other stories I
have
heard.
After that the 1742a performed almost flawlessly for 15 years and
sold it locally to
a "cash converters' store for AUD$500 after it was repaired, still
see some models
on ebay in Oz from time to time,
And yes I kept the service manual with the equipment and used it
twice to
look at a burned out resistor on the input stage as I recall and
rewind/swap
a transformer for the grid supply,
Cheers
Regards
Mike
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