On Fri, 11 Jun 2004 18:36:29 +0100, you wrote:

>Hi,
>  Does anyone here use a HP 1650B or 1651B logic analyser? I'm thinking =
about
>buying one and I've got a few questions that I need answering.
>  - Besides HP themselves, were there any second-sources of the little =
grey
>    "grabber" tips that connected up to the connector pods? The =
analysers
>    seem to be quite regularly listed on ebay, but the pods and grabbers=
 seem
>    to be about as easy to find as a lump of 99.9% pure unobtainium.

I wouldn't recommend getting one without pods - they use wacky cable, and=
 the  probe leads have
resistors in them. The grabbers are probbaly less of a deal - I think =
these should be fairly easily
gettable.

>  - Does anyone know if the disk drive fitted to the 1650B is capable of
>    writing to 1.44MB disks or is it strictly 720K only?

My 1650A is certainly 720K only, and I think the format is a bit odd, =
i.e. not PC readable directly.
I think HP have a utility to write sofware upgrades to a disk on a PC

>  - Does anyone know of a source for manuals for the 1650B, either in
>    electronic format (i.e. Djvu or PDF) or on paper? Has anyone written=
 and
>    published a quick-reference card of some form?

I would be surprised if these weren't available somewhere - these =
analysers were very popular in
their day (and are still useful), but the manuals were written before the=
 days of PDFs etc, and so
unless someone has scanned one (about 2" thick from memory) you may need =
to buy a paper one. there
are a number of companyies specialising in test equipment manuals.=20

>Also, do any of the Ebay nuts here know what happens if, for example, I =
did
>this:
>  1) I place a bid of $50
>  2) Someone bids up to $20
>  3) I place a bid of $95
>
>Assuming the bid increment is $1, would the bid at (3) cancel out the =
bid at
>(1) (meaning the price stands at $51) or would it increase my maximum =
bid and
>leave the current bid at $21? This kind of situation doesn't seem to be
>covered by Ebay's online help.

I'm pretty sure it would stay at $20, as you are the high bidder and are =
just revising your bid. If
someone else had beat your original $50, it would go up by the next =
increment.=20

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