Speaking of Picketts, does anyone know the story (or portions thereof) about when P&E starting making slide rules out of magnesium, why (as opposed to plastic...
By the way, brain cells for the number "8" had temporarily faded here, and the real number of the Pickett Resistance Design (RD) slide rule for North American...
Hello Al Meakin --- I sold these stands once upon a time. A friend here in San Angelo, Ron Downie, made them. He still has some material for them. They were...
It has been supposed that Pickett made a deal on surplus magnesium bar stock at the end of WWII, but I don't know of any evidence to back this up. Coefficient...
Ed, The Pickett history may be well described in some back issues of slide rule publications, but few people have long runs of those at hand (e.g., to see...
I see two Relay slide rules on ebay -- one a model 150 and the other a 550 both with folded scales. One has the fold at pi and the other at square root of ten...
Last weekend I found a pocket duplex slide rule at an antique store. It's made by Graphoplex, and also has a Koh-I-Noor logo and the model number 10001. I...
George, I believe that the cursor can be removed by removing the screw. I think the cursor is hinged to allow this. Note the unsual tangent scales arrangement...
... other a 550 both with ... of ten which is not ... Marion The other common fold value is 3.6 seen on "commercial" type slide rules - if I limit myself to...
Folks-- I have posted the first half of this manual in the files section of the group, but there is not enough room for the second half. Would anyone care to...
I have started looking for a watch with a good working slide rule. Am trying to find one that would have the equivalent of a c/d scale combination and stay...
Bill, First of all, you want to be sure you can read it, good contrast with background and number size. Also, many don't have the tick marks that close to each...
I'm looking for the right term to describe the unusual plastic that is characteristic of the bodies of Cox and Stevens types of load adjuster slide rules. Back...
I am interested in the functions of the theta and 'x' scales as they appear on the back side of my Hemmi 255D slide rule. Any information would be appreciated....
Bill, I gave details of my <Citizen Quartz World Time, Model No. JQ8070-54, Caliber No. 460-LZ0506TA slide rule wrist watch on 27 Mar (Message 9, Digest...
I have now figured out that the 'x' scale is 'radians'. Perhaps I should have done all this thinking BEFORE I set to waste your time with messages. Oh well; it...
Lawrie There is a complete manual in HTML format on my site at: http://www.sliderules.clara.net/a-to-z/fc283n/english/fc-283n-eng.htm and in Adobe PDF at ...
That pulsar one that others had noted may be a candidate; it lists at $250 on the pulsar web site. It may have said gap between the scales, looking at the...
Chris: I'm reading this email early Saturday morning as I'm literally running out the door. Will not be back until late today. I have a copy of the 255D manual...
Hello all. I was screwing around with my slide rule the other night and found a quirk had not seen listed before. we all know you can set C over D and get the...
The accuracy of electronic calculators and slide rules has long been debated. The same could be done with mechanical watches versus quartz. How accurate does...
Thanks, Bill. As already posted, I have answered my own questions. Thanks for your thoughts and - don't hurt yourself running out the door and reading email at...
... Paul, you don't need the CI or DI scales. The number under the C index on the D scale has its reciprocal over the D index on the C scale. For your example,...
... and read the answer over the D index as opposed to under the C index. I do this by setting 'a ' of the the CI scale over 'b' on the D scale and read the...
The entire manual for the S.I.C. 1580 is now posted in the files section. Thanks for opening up the necessary room! And good luck in figuring this one out....
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
