oldcalcs at Yahoo! Groups

Re: Warning - Joe Rigdon

generankin — Sun, 12 Apr 2009 15:43:47 GMT

... I'm less reluctant. I sent him my unwell HP-25 in 2000. he diagnosed it as having a bum power supply. I found another in Europe with a good power supply

Re: Stroboscopic display

Rick Bensene — Thu, 19 Feb 2009 21:08:27 GMT

Nicholas Bodley wrote, regarding the Stroboscopic Display on the Russian ... video ... To my knowledge, no other calculator was ever built utilizing this type

Re: Stroboscopic display; HP35s

Sergei Frolov — Thu, 19 Feb 2009 20:16:39 GMT

Thank you for the reply. NB> Fascinating! Probably quite a few people never thought of using such a NB> technique for a calc. display. Showing the displayed

Re: Stroboscopic display; HP35s

Nicholas Bodley — Thu, 19 Feb 2009 19:35:04 GMT

... Fascinating! Probably quite a few people never thought of using such a technique for a calc. display. Showing the displayed numbers with video did not make

Stroboscopic display

Sergei Frolov — Thu, 19 Feb 2009 18:08:56 GMT

Hi! I have uploaded a video about running Russian calculator RASA with stroboscopic display http://www.youtube.com/watch?v=iCiJS3BU0i4 and also game pack for

Re: The HP Journal is online as PDFs!

Nicholas Bodley — Mon, 02 Feb 2009 15:55:12 GMT

On Sun, 01 Feb 2009 22:40:30 -0500, Dejan Ristanovic ... You're most welcome! Glad to help. -- Nicholas Bodley /|*|\ Waltham, Mass. A very

Re: The HP Journal is online as PDFs!

Dejan Ristanovic — Mon, 02 Feb 2009 03:40:30 GMT

Great! I downloaded the complete archive, took some time but the PDFs are now safely backedup on my disk :) I liked the articles about HP41 and stuff, from

The HP Journal is online as PDFs!

Nicholas Bodley — Sun, 01 Feb 2009 17:59:21 GMT

Yippee! Some of you, maybe many, already know this. Try this: What you'll see is (or looks like) an FTP

Re: arcsine vs sin -1

Rick Bensene — Fri, 30 Jan 2009 16:45:42 GMT

... The Casio fx-1 had sin, cos, and tan, and though it didn't have a sin -1 key, it did have a tan -1 key. It's not an exact match for what you are looking

Re: arcsine vs sin -1

Sergei Frolov — Fri, 30 Jan 2009 14:25:02 GMT

Thank you for the information about Compucorp! I have learned that in 1971th there is a model with [sin -1] inscription It was "Copucorp 110/X"

Re: arcsine vs sin -1

katie wasserman — Fri, 30 Jan 2009 13:36:55 GMT

I completely misread that, sorry. The 45 was the first HP that used [sin -1] but the 46 -- released on the same day in May, 1 1973 -- continued to use ASN.

Re: arcsine vs sin -1

katie wasserman — Fri, 30 Jan 2009 13:21:02 GMT

All the HP calculators used ARC going back to the 9100A in 1968.

arcsine vs sin -1

Sergei Frolov — Fri, 30 Jan 2009 05:36:26 GMT

Hello group, I have a small question about first implementation of the arcsine function in short inscription. Which calculator earliest used the [sin -1]

Service manual SR-52 wanted

Rik Bos — Wed, 03 Sep 2008 08:15:06 GMT

_____ I'm busy restoring a Ti SR-52 and having some trouble with the card reader electronics. I't's reading prerecorded cards fine, but is not writing data on

Calculator Quirk

Bob Patton — Thu, 22 May 2008 14:32:57 GMT

Quirk #022 Tricky trig functions The Casio fx-300SA has a basic AOS operating system that is much like most of the fx-250 series and like the fx-300v. It has,