Thanks Ron, You came through again. I had suspected as much but wanted to get some confirmation. It's true chain trig calculations are not common but there are...
Kurt: Although Ron has done some research on this topic, last weekend I got a change to practic. I had to figure out the lenght of a ramp and the easiest...
Hi Ted, "Excruciating". My feelings exactly. Until Ron clued me in, it was really bothering me that I couldn't handle trig functions as easily as numbers....
Just a P.S. to my last post. As a matter of fact I own a slide rule that has trig scales on the slide and a P scale on the body. It is my Sans & Steiffe 312, a...
Kurt: After I posted my message I went to Sphere's archive and lo and behold I found that the Hemmi 260 has both the P scale and the trig scales on the slide....
Hi Kurt et al, Though I haven't been but a lurker with the trig calculations, I have followed it closely. I agree, it is very advantageous to have trig scales...
oops, a P.S. to my last post...the Relay 151 doesn't have the trig scales on both slide and stator. I was thinking of another one I have and use. That will...
Hi Miles, At one time my collection consisted of only log-log duplex slide rules because those are the type of rule I would use in my work as a civil engineer....
Hi Kurt, A little slow in getting caught up on things. I think I need to move to a planet that rotates slower, I could use the time :) Anyway, I too tend to...
Hi Miles, A few weeks ago I picked up an Aristo 929 Multitrig and then on Monday I received a 970 Multilog. These make a very handsome pair, similar to the...
Doea anyone have a Nestler # 28 Universal rule they would be willing to sell or trade for? Please let me know if I should post this request elsewhere. Thanks,...
Hi Kurt, I have to admit, I do like the Aristo slide rules. I don't have the 929, but do have a 968, 909, 868, and 970. All of them are log type rules. The...
Howdy miles, I've got a few Aristos myself, 908, 929, 968 (2 of them), and the 970. The 929 and 970 are by far my favorite Aristos. As you have probably...
Today marks the addition of the 100th member of sliderule forum. It is gratifying to see that this group has survived and grown to this size. Though not as...
Greetings: A warning to the moderator...I am a moderator on a lunar observing group. There is a group of people joining the astronomy groups and posting links...
Hi all, I was gifted one of these rules, in a case but without any documentation. I'm particularly interested to know how the Td, Sd TdI and SdI scales on the...
Hi Keith, Congratulations on being gifted your Thornton P271. I have one of them myself, but unfortunately don't have the instructions either. There are a...
Keith If you go to my site you can either read the instructions via the internet at: http://www.sliderules.clara.net/collection/inst-thornton.htm or download...
Thanks for the info, Miles and Ron. My rule does have the "traditional" scales on the lower stator, which seems like a waste, the space could have been used...
Hi Keith, I can't speak for the first part of the message, but can give you some info on Peter Hopps book. It is called "SLIDE RULES Their History, Models,,...
Hello All! I've posted several slide rules on ebay, including a mint in box Hemmi 266 Electronics rule, FC 2/83N, a K&E 1251 and a Deci- lon 10. If you're...
Hello All! I've posted several rules to eBay, including a Post Versalog variant a, a variant b, a Pickett N4-ES, 1010-T, and N800 in its box; a Faber Castell...
Hello all. I've recently sold several rules to engineers who expressed surprise that a whole community of collectors existed. I don't know what efforts are...
Bless you, Mike!! As founder, I have watched this group grow to over 100 members. This must be one of the largest groups to have so little activity. I am...
Hello All. I've posted a Graphoplex 695 slide rule, MIB to eBay. Possibly the best rule Graphoplex ever made. Also a KOH-I-NOOR / Graphoplex 643 pocket slide...
This is a little off topic, but it did cause me some confusion and thought I'd mention it. In looking through the eBay listings, I do it several ways to catch...
This is a little off topic, but it did cause me some confusion and thought I'd mention it. In looking through the eBay listings, I do it several ways to catch...
This is a little off topic, but it did cause me some confusion and thought I'd mention it. In looking through the eBay listings, I do it several ways to catch...