Pickett 120 slide rule
Rating:
4,4/10
232
reviews

An excellent student rule with good trig capability. The C and D scales show a number x that equals the exponential of the distance of x from the beginning of the C or D scale. Note that the full Pickett teacher's manual that covers this rule and others is now on line. Suppose we want to find the roots of the equation So we want to find two numbers and that add to and multiply to. Comes with a 48 page instruction manual. For example, may have to be in a certain interval, and the tables do not distinguish between different versions of the same scale, e.

We will supply the original manual to the first buiyer, and a copy to the second one. Sh is the inverse of the hyperbolic sine. Note that the full Pickett teacher's manual that covers this rule and others is now on line. There may be another scale for in and the two scales may be distinguished by subscripts. White Traditional T coated aluminum construction, black and red scales, dual log scale design in one of Pickett's most powerful rules. A subsidiary of this page describes a software package that let's you enter an expression and will tell you how that expression can be evaluated with a slide rule.

This is a very sophisticated rule, made in the trademark aluminum body format by Pickett, complete with a gold embossed black leather case. Pickett Detailed here are many Pickett exclusives and innovations that have earned educator approval, professional acceptance and the praise of scientists, engineers, and students. Find out who made what, and what became of them after they stopped making slide rules. That readable little book describes very many applications of slide rules. The earliest Pickett metal rules were made with Magnesium alloy bodies models 2, 3, 4, and 1000 , but production switched to Aluminum in the 40's.

This is a powerful pocket rule, with performance equal to a much larger straight rule. We get many requests for this rule, but have a very hard time finding them, especially new in the box. At some stage in the past someone had the quite brilliant idea to approximate the square root of 10 by. K This scale usually occurs by itself, rather than as a member of a pair. This is a flawless, like new, specimen of the model and includes the , which is even harder to find than the rule! Rule and case are in new condition.

Scales 1 and 4 are on the body, scales 2 and 3 on the slide. We can provide a reprint of the scale info on request, or you can just download it: Need the special scale operating instructions? The sets are perfect inside, but sadly, the boxes are not. On slide rules, all angles are measured in degrees, and reside in the interval. Don't miss your chance to get one of these unusual pocket rules, they are an excellent design, and very useful in the pocket sized format with the built in data table. This did not stop us from doing complicated things, like going to the moon, figuring out the double helix, or designing the Boeing 747. Inside the flap is the name and address of David D. This is a powerful lightweight pocket rule, with performance equal to a much larger straight rule.

White T coated aluminum construction, black and red scales, dual log scale design In Pickett's most popular power rule set. What happens if we use other scales? The last three rows show less common formulas that can be evaluated. This is a sophisticated rule, made in the trademark aluminum body format by Pickett. Once you have it you can impress your friends and coworkers! All of it is explained in the manual included. Quadratic Equations As discussed above, one thing slide rules can do that calculators can't is create tables. Marks lists how many marks are on the cursor, including the hairline, and the remaining columns indicate the specific scales as listed above. Much nicer than most of the inexpensive Acumaths circulating around.

The typesetting of some of those formulas is a bit idiosyncratic. This is the fundamental identity underlying all slide rule calculations, and it is worth stating prominently: It's convenient to think of the logarithm as the common base 10 logarithm, and the length of the slide rule as one unit, but you can also think of log meaning the natural logarithm, and the length of the slide rule being log 10 units. This gives you a very strange slide rule without a C scale. I have a variety of slide rules I need to sell, so hopefully I can learn the ropes and provide a good buying experience for you. Note that the full Pickett teacher's manual that covers this rule and others is now on line. He married in 1946 and raised two children.

The copyright date, logo, shape of the posts, and location of the grooves on the slide instead of on the base are all consistent with a date between 1958 and 1962. Then we move the number v on scale 2 underneath the hairline. I wish we could find a truck load of these. Very high quality, American Made, Pickett rule. This is a very sophisticated 34 scale rule, which includes many unique electronics scales, made in the trademark aluminum body format by Pickett. When I went to high school our work horse slide rule was the Aristo Scholar 903.