Hi Ron; Thanks for the links to the Nestler catalogue scans, but I have an original paper copy. It belonged to my Mother who was a Mathematician. Bill Drylie ...
41067
savagetom
Jul 6, 2011 8:37 pm
I just stumbled across this video from the Army Corps of Engineers. The slide rule looks to be a frameless K&E. It seems to be appropriate for the task for...
41068
Dave KK7SS
d3j452
Jul 12, 2011 1:54 am
The book "Reflections" by M. Walter Maxwell, has a picture of him (second page) holding a slide rule. http://homepages.ipact.nl/~pa1are/tuner/reflections.pdf ...
41069
Michael
papaboo02
Jul 17, 2011 3:22 am
I am having trouble dating 2 slide rules: 1) A K&E N4053-5, serial #: 610626. According to the K&E dating nomogram, this could either be 1936 or 1950. How...
41070
Stefan Vorkoetter
smvorkoetter
Jul 17, 2011 3:22 am
I find myself designing a lot of R-C (resistor-capacitor) filters in my other hobby, electronics. The formula for the cut-off frequency of such a filter is: f...
41071
craig_kielhofer
Jul 17, 2011 3:32 am
Stefan, Your best bets would be to the an electronics SR. The best examples that I know of are the Pickett N-16, N-515, and N-531 as they have a 2 pi scale...
41072
Clark
clarkmccoy2
Jul 17, 2011 5:19 am
Hi Michael On the 4053-5 it would appear that it might be either date. I will do some checking but I don't believe that there were any changes in production...
41073
Mark Armbrust
cadet1620
Jul 17, 2011 11:19 am
Try this: Set cursor to 5 on DF. Move slide so f on C is under cursor. (C index is now against R*C on D.) Use cursor to read R,C pairs on CI and D (or CIF and...
41074
William Drylie
wldrylie
Jul 17, 2011 11:21 am
Hi Steve and group; Set up a proportion table on a slide rule that has a DI scale and a CIF scale. You have a constant and a variable known by choice. Example,...
41075
Adam Turoff
ziggyatpanix
Jul 17, 2011 11:24 am
I got an Otis King cylindrical slide rule, and both the top and bottom scales are separated from the body. Does anyone have an idea what's a safe, effective...
41076
Paul Hirose
paulhirose
Jul 18, 2011 6:52 pm
... Multiply both sides of the equation by R * C and divide by f to get R * C = .5 / pi / f If you could set the right side of the equation at the C index, all...
41077
Jack
radarpoet
Jul 18, 2011 6:55 pm
Hello Am looking for the instructions for the F-C business rule 67/22. Can anyone help please? Regards Jack...
41078
Peter Owen
pro1947
Jul 18, 2011 11:23 pm
I've got a set of instructions for the 1/22, 4/22, 67/22 and 111/22. Do you want me to scan it for you? Peter -- Peter Owen mailto:peter@... ...
41079
PhilippedSRforum
philippedsrf...
Jul 19, 2011 10:20 am
Hello, I'm sending it to your email address. Rgds Philippe Deau ... From: Jack To: sliderule@yahoogroups.com Sent: Monday, July 18, 2011 6:47 PM Subject: SR...
41080
Alvaro
alvgon
Jul 20, 2011 6:05 pm
Hi there Philippe. Could you please send me a copy of the manual? It's a hard one to find. Many thanks in advance. Alvaro...
41081
Jack
radarpoet
Jul 20, 2011 6:07 pm
Many thanks to Philippe Deau for the scans and to Peter Owen for the offer. Much appreciated. Jack Segal...
41082
andreKP
Jul 20, 2011 6:09 pm
Aside from just doing the calculation on any old slide rule like you would any old calculation, as someone suggested, if you do electronics as a hobby, you...
41083
sliderulenut
Jul 20, 2011 6:12 pm
Paul, it appears that you missed setting the proportional representation and focused on the classic CI, D scale multiplication technique. If you expand the...
41084
Stamper Bob
robert.stamper
Jul 20, 2011 7:39 pm
I recently found a Pickett N-515-T slider rule and need the instruction book. I would appreciate any information on how to obtain one, original or copy. ...
41085
Steve Treadwell
dfsmth45
Jul 20, 2011 9:24 pm
Hi Bob, You can download one here: http://sliderule.ozmanor.com/man/man-download.html Scroll down to Pickettt N515 Steve Treadwell...
41086
Mark Armbrust
cadet1620
Jul 20, 2011 9:24 pm
These might be useful and interesting. CIE lesson pages covering special scales, .pdf (480 KB) http://www.marksmath.com/slide-rules/doc/pickett-515-excerpt.pdf...
41087
Steve Treadwell
dfsmth45
Jul 20, 2011 11:58 pm
After looking at this, it seems to be only that part of the manual which deals with the special electronic scales. The slide rule was made for the Cleveland...
41088
Stamper Bob
robert.stamper
Jul 21, 2011 8:21 pm
I recently acquired a Pickett 6 inch Real Estate Costimator specialty slide rule. It was in the original box with all documentation in like new condition. It...
41089
Hugh Aguilar
hughaguilar96
Jul 21, 2011 10:21 pm
I have my software for generating gcode and PostScript for making custom anodized-aluminum slide-rules. http://www.forth.org/novice.html You have mentioned...
41090
sliderulenut
Jul 21, 2011 11:15 pm
Stefan, yes, to your question. See message Paul Hirose's and my messages 41076 and 41083 for the details. It is quite straightforward. marion moon...
41091
dspr743
Jul 22, 2011 11:05 pm
I've seen reprints of the 4-volume set on one of the Pickett slide rule sites. I think it was houseofsliderulers.com or something like that. Seemed a bit...
41092
dieswartdose
Jul 22, 2011 11:13 pm
Stefan, I am quietly studying slide rule design at the present, and your problem interests me. I can imagine that in times gone by some component manufacturer...
41093
w9ya
Jul 22, 2011 11:56 pm
Actually those are probably NOS and not reprints !! At least he was selling the real items that last time I checked and I assume he might still be doing so. ...
41094
Mark Armbrust
cadet1620
Jul 23, 2011 2:01 am
From House of Slide Rules web site: "We have been authorized under copyright to reproduce the Pickett 515-T Cleveland Institute of Electronics manuals." ...
41095
w9ya
Jul 23, 2011 4:05 am
Okey dokey.... the stuff they were selling a couple of years ago were the originals. But they ran out I guess and that's fine. Thanks for the clarification. -...
