HP-21S - Is it a rarity?
09-15-2014, 09:08 AM
Post: #32
 Paul Dale Senior Member Posts: 1,766 Joined: Dec 2013
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? - Massimo Gnerucci - 09-13-2014, 10:23 AM RE: HP-21S - Is it a rarity? - Raymond Del Tondo - 09-13-2014, 01:00 PM RE: HP-21S - Is it a rarity? - Massimo Gnerucci - 09-13-2014, 02:29 PM RE: HP-21S - Is it a rarity? - Tim Wessman - 09-14-2014, 08:19 PM RE: HP-21S - Is it a rarity? - robert rozee - 09-13-2014, 12:26 PM RE: HP-21S - Is it a rarity? - Maximilian Hohmann - 09-13-2014, 12:29 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? - Thomas Radtke - 09-13-2014, 03:00 PM RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 03:16 PM RE: HP-21S - Is it a rarity? - Marcus von Cube - 09-13-2014, 07:43 PM RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 08:13 PM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-13-2014, 06:54 PM RE: HP-21S - Is it a rarity? - Maximilian Hohmann - 09-13-2014, 06:58 PM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-13-2014, 07:20 PM RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 07:30 PM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-13-2014, 07:45 PM RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 08:25 PM RE: HP-21S - Is it a rarity? - Massimo Gnerucci - 09-13-2014, 08:45 PM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-13-2014, 08:53 PM RE: HP-21S - Is it a rarity? - jebem - 09-13-2014, 09:09 PM RE: HP-21S - Is it a rarity? - Thomas Radtke - 09-14-2014, 09:59 AM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-14-2014, 02:06 PM RE: HP-21S - Is it a rarity? - Thomas Radtke - 09-14-2014, 02:34 PM RE: HP-21S - Is it a rarity? - John R - 09-14-2014, 04:13 PM RE: HP-21S - Is it a rarity? - Dave Frederickson - 09-14-2014, 04:59 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? - Dave Frederickson - 09-14-2014, 05:37 PM RE: HP-21S - Is it a rarity? - ElectroDuende - 09-15-2014, 08:12 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? - Thomas Klemm - 09-15-2014, 07:35 PM RE: HP-21S - Is it a rarity? - Geoff Quickfall - 09-18-2014, 01:15 PM RE: HP-21S - Is it a rarity? - jebem - 10-03-2014, 05:27 PM

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