I have several slide-rule designs available. It is trivial for me to generate custom slide-rules so long as the user can pick his scales out of my list. ...
40457
andreKP
Jan 12, 2011 8:13 pm
Hey, Anybody have a scan of a manual for a Hemmi 256 "Electrical Communications"; rule? Thanks, Andre...
40458
Paul Hirose
paulhirose
Jan 12, 2011 10:04 pm
... accuracy - 5 places! That reminds me -- one of my K&E manuals explains how to use log log scales to compute a reciprocal with more accuracy than an...
Wow thanks. I never realized that manual had all that info on other rules in it. That might answer a FEW questions! P.S. I have no idea how my original...
40461
scott_645
Jan 14, 2011 10:08 pm
Hi, Is the person who won the Lafayette Decimadyne on eBay December 19 a member of this group, and if so would you be willing to share a scan of the manual? ...
40462
Per Ulv
perulv24
Jan 15, 2011 12:21 pm
I just purchased a well used Norma Merkuria 190 circular slide rule, but unfortunately without the main instruction booklet Can anybody help, so I can achieve...
40463
Robert
radamspse
Jan 15, 2011 10:49 pm
Actually Pickett rules weren't the only slide rules to have the Ln scale. The Westec rule also had a Ln scale. cheers bob...
40464
w9ya
Jan 16, 2011 1:51 am
Um all I can find off-hand on that model is a scan of the front and it looks like a 'rip-off' the CIE/Pickett N515. I vaguely remember it having a British...
40465
calculators_suck
calculators_...
Jan 16, 2011 5:27 am
Hello, New subscriber here. I'm a newcomer to slide rules, puzzling over why they were never in my high school curriculum and at times, why they were replaced...
40466
Steve Treadwell
dfsmth45
Jan 16, 2011 11:38 am
There's also a ln scale on the FC 2/84N, labeled e^X on the left and ln Y on the right of the scale. Looks like they use a different hairline for each power...
40467
Steve Treadwell
dfsmth45
Jan 16, 2011 11:42 am
Welcome to the group. Your user name is a bit long, so would you rather be called "calc" or "suck" ? <grin> Or maybe a first name? Seriously, there is a lot...
40468
andreKP
Jan 16, 2011 4:50 pm
... Take a look at the scan over at the Paul Ross Hemmi Catalogue Raissone: http://hemmicat.srtco.us/ It has both sides scanned, albeit not in the clearest...
40469
andreKP
Jan 16, 2011 4:50 pm
Hi and welcome! You might also consider looking in manuals for other rules (the Hemmi manuals can be good. The Versalog one in particular is useful). Very...
40470
Zvi Doron
zvidoron@...
Jan 17, 2011 11:34 am
Hello I have just received a beautiful Nestler Multimath 0292 (last but one, I am told) courtsey of Dick Rose of Vintage Instruments. The L scale is mapped...
40471
Rod
rodlovett
Jan 17, 2011 11:53 am
Hello calc...etc, And welcome. Great idea about a database of shortcuts and tricks. It seems to me that the database could hold either the "shortcuts or...
40472
sliderulenut
Jan 17, 2011 9:37 pm
Welcome to a very interesting site. You will find a lot a very useful and great information about slide rules than you ever imagined possible. If I may, let...
40473
Paul Hirose
paulhirose
Jan 17, 2011 9:37 pm
... You have a good point. Sometimes it helps if L is on the slide and mapped to C/D. For example, what is the ouput of a 12 dB amplifier if the input is 5...
40474
w9ya
Jan 17, 2011 9:37 pm
Someone (....I'm not able to look it up right now) two years ago at the Winter Meeting, handed out a booklet/printout of a computer program he wrote to do...
40475
w9ya
Jan 17, 2011 9:37 pm
Er um,.... the out-of-context quote below does not pertain to the Hemmi as the discussion had switched to talking about the Westec v/v the Pickett 515 (and no...
40476
w9ya
Jan 17, 2011 10:12 pm
It seems that the examples so far are taking the basic scale from one end to the other and dividing it with 50 divisions, hence a properly calibrated and ...
40477
Zvi Doron
zvidoron@...
Jan 17, 2011 10:12 pm
I understand your method but not sure about increased precision - on the versalog for example, although you start from a 20" root scale, the L scale itself...
40478
w9ya
Jan 18, 2011 1:07 am
Look at it this way.. the divisions are exactly the same length, just the markings are different. so IF you have the R/W scales, the markings on the L scale...
40479
William Drylie
wldrylie
Jan 18, 2011 1:07 am
Hi; In 1971 at the Pitt University book store after buying my last years text books, I saw small book entitled "Use of the 2/83N and 2/82N Slide Rule". On...
40480
Paul Hirose
paulhirose
Jan 18, 2011 9:14 am
... I don't think so, Zvi. Let's try a thought experiment. The Multimath and Versalog scales have the same length and divide that distance into 500 equal...
40481
Zvi Doron
zvidoron@...
Jan 18, 2011 9:15 am
Hi Bill Another book dedicated to the high end FCs with a chapter on the W scales is A Complete Slide Rule Manual by Neville W Young. I have a copy here...
40482
John Mosand
jomosand
Jan 18, 2011 11:27 am
There is another very good book on the 2/83N and 2/82N by Siegfried Petry. 118 pages. Copyright Faber-Castell. Apparently published in several languages. It...
40483
Zvi Doron
zvidoron@...
Jan 18, 2011 11:37 am
Well, did I not say "am I wrong or am I wrong?" and I was wrong... Thanks Paul ... From: Paul Hirose To: sliderule@yahoogroups.com Sent: Tuesday, January 18,...
40484
William Drylie
wldrylie
Jan 18, 2011 11:21 pm
Hi; John Mosand wrote "There is another good book written about the 2/83N 2/82N ........." Sorry John, that was the book I was referring to. I inadvertently...
40485
calculators_suck
calculators_...
Jan 19, 2011 6:24 am
Done. Check under `Slide Rule Algorithms' in the ISRG database. I have links to the three pages of the K&E manual, plus the perl program, plus a description of...
