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HP-21S - Is it a rarity?
09-15-2014, 09:08 AM
Post: #32
RE: HP-21S - Is it a rarity?
(09-15-2014 08:12 AM)ElectroDuende Wrote:  I got mine, a very well preserved one, but with the slip case as only accesory, for $42 + $2 of shipping, three months ago, so I consider those 43 a very good price if manual and case are included. The manual is very rare, as it is said that this calculator was sold to educational market "in bulk" without them; anyway, it is easy to find scanned copies online.

That's about what I'd be willing to pay for one these days. The one I've got was a little bit cheaper but that was quite a while ago.


Quote:I have in my "TO-DO" list, a recreation of the even rarer guide for the use of the included programs (pretty difficult to use without it), that was a foldable sheet that can be teared from the manual, as the scanned copy has very little quatility to be printed. I promise to share.

This would be absolutely fantastic. Those programs are amazing but incomprehensible to most. I've still not gone into any real depth studying them.


I almost wish we'd done something similar to these in the 34S. The TVM code is similar and a great beginning but there is so much more that could have been done. Keystroke programs are extremely space efficient and can be very powerful.


- Pauli
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Messages In This Thread
HP-21S - Is it a rarity? - jebem - 09-13-2014, 09:35 AM
RE: HP-21S - Is it a rarity? - Tim Wessman - 09-14-2014, 08:19 PM
RE: HP-21S - Is it a rarity? - JuanJ - 09-13-2014, 01:33 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 02:06 PM
RE: HP-21S - Is it a rarity? - Gerald H - 09-13-2014, 02:28 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 03:16 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 08:13 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 07:30 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 08:25 PM
RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 09:09 PM
RE: HP-21S - Is it a rarity? - John R - 09-14-2014, 04:13 PM
RE: HP-21S - Is it a rarity? - John R - 09-14-2014, 04:00 PM
RE: HP-21S - Is it a rarity? - JimP - 09-18-2014, 04:19 AM
RE: HP-21S - Is it a rarity? - Paul Dale - 09-15-2014 09:08 AM
RE: HP-21S - Is it a rarity? - rprosperi - 09-15-2014, 06:01 PM
RE: HP-21S - Is it a rarity? - walter b - 09-15-2014, 07:35 PM
RE: HP-21S - Is it a rarity? - jebem - 10-03-2014, 05:27 PM



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