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Sheesh. Leoglyph at it again!



#14

Check-out the bidding/pricing on this auction! (Previously, a mint-condition 28s could be had for $50-$100.)

http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?ViewBids&item=1372645885

Bruce.


#15

A few weeks ago I sold one complete with both manuals for $60. The guy offered me only $40 but finally agreed to generously pay $60... Leoglyph, you're welcome on any of my sales !!!


#16

thibaut.be,

Here is the info of Leoglyph who registered in ebay just more than a week ago. Are u referring to the wrong person?

Cheers,

David


===========================================================

User ID History for leoglyph

User ID History Effective Date End Date

leoglyph Wednesday, Aug 07, 2002 Present

*** - Parts of prior User IDs that are email addresses are concealed to protect member privacy.


#17

Hello,

I think he's talking of a different person who bought a 28 from him, and then invited 'leo' to buy other things from him, since 'leo' seems to have some, errr, difficulties with eBay;-)

Regards,

Raymond

#18

and then here too! Way to go Leo!

http://cgi6.ebay.com/aw-cgi/eBayISAPI.dll?ViewBids&item=1373195492


#19
[Link to auction bidding history deleted at the request of the seller]

I really wonder if Leoglyph is a serious buyer or just someone having fun with the auctions... Let's follow-up the feedback of his 2 41cx purchase...

Leoglyph, I have couple of MIB 12c's for $375 each if you want ...

#20

I won a mint-condition 28C with mint-condition manuals on eBay about a month ago for $37 + shipping. Several weeks prior, I watched anther 28C go for $34. The only functional difference to my knowledge is 2kB RAM on the 28C vs. 32kB on the 28S. Doesn't really matter to me, because I'm not much of a fan of the RPL calc's (e.g. 28, 48) with their quirky stacks and syntax-intensive operations. However, I wanted an example of the model.

Judging from eBay prices for the 28 and 48 vs. those for the respectively less-capable, strictly-RPN 15C and 42S, I'm not alone. At the risk of starting a philosophical thread, I submit that a good handheld calculator must have three attributes:

1. Compact
2. Lightweight
3. Easy to use

The 15C and 42S succeed on all three points, while the 28C/S and 48S*/G* fail all three. Ergo, the respective prices and desirability.


#21

I've had a 48SX since it was current and added 48GX and 49G when I found them discounted. I never got comfortable with them until recently. What actually got me started was when I found I could write my own graphing programs on the 38G, with its limited programming language. I decided to "port" them to the 49G, where I first had to sort out "RPN vs. Algebraic" and then come to terms with user RPL. Then I wanted to see what the relative speed of the 48GX and 48SX was and easily moved my programs from the 49G to them. I am now quite comfortable with user RPL and wrote a very slow terminal program on my 48SX!

Regarding the stack: I have found that it really works the same as the four level stack in that if you don't care about an item, you can just forget about it - except that the stack grows instead of discarding the item, so it is up to you to remove things. In programs, new items on the stack are generally consumed by the following instructions. Sometimes you want an item to stay on the stack and you can use DUP and ROT similar to the way you use <Enter> and <Roll(up,down)> on a four level stack machine. There are also ROLL and ROLLD which are generalized to do any number of levels. With the massive number of commands, there must be many cases where one command saves steps - I was very pleased when I found INCR!

I also have a 28S and I did power it up recently to try programming its LCD but I am paranoid about leaving batteries in it since it would be so hard to clean out. Also, even though I have used it very little, one of the plastic heat stakes on my battery door has broken off.

I give a lot of credit to the Forum for giving me ideas to try out on my calculators, that push-started me to do more with them.

#22

The only functional difference to my knowledge is 2kB RAM on the 28C vs. 32kB on the 28S.

The additional RAM was certainly a major improvement, but the 28S has a
new ROM which includes some other worthwhile improvements.

The directory structure, useful with so much more memory, is an obvious
one. It also added LCD\->, \->LCD, the "hot-key" method of invoking
PRLCD, indexed variables,....

Regards,

James

#23

Looks like this guy was trained in the same school of bidding as Leoglyph:

http://cgi6.aol.ebay.com/aw-cgi/eBayISAPI.dll?ViewBids&item=1372647574

Must be the full moon coming on... Things seem really weird on eBay lately. Is just me being paranoid or does this look like shill bidding to anyone? Or just newbies at play?


#24

I think they're just newbies, as you can see from their feedback, and, in the case of 'leo', the craziness of bidding about $200 for an HP-28S.

Usual prices for these machines are between $30 and $70,
with manuals of course.

The most interesting items on that particular auction wasn't the calc iself, nor the leather pouches. Instead, the book from Wlodek 'Customize..', and the pocket guide were the things to hunt for.

Like 'buy the bulk, throw away the calc';-)

Raymond

BTW: I have a near mint 28S for sale, maybe with manual, maybe even with HP leather pouch. What about $200 + shipping?


#25

The first time I bid on ebay I used the same method of bidding up in small increments. I think I did this because I was fooled into thinking it was like a normal bidding process and I needed to know the limit of the highest bid.

In a 'normal' bidding room there are usually only 1 or 2 bidders you are up against, in ebay there could be thousands. Also in a normal bid you keep going, there is no time limit. Both these ebay differences change the way an experienced ebayer bids.

I realise now that it's best to bid late when the final value is better known (and you help keep down the final price).

Unfortunately the false bidding theory looks very similar to a typical newbie tactic. As ebay makes it easy for a potential false bidder to look like a newbie it can look bad.

Just my 2 pennies worth - hope I've not offended anyone or got the wrong end of the stick...

#26

Yes, but at least the max bid was fairly reasonable...


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