[Elecraft] RPN Calc App For Android

[SAMUEL L ROWE]

I used a 6" Pickett log-log at NC State in the early 60's.
Easier to carry than my full size Post.
Sam KG9NG

________________________________
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> on behalf of Bill Frantz <frantz at pwpconsult.com>
Sent: Sunday, February 6, 2022 9:50 AM
To: Elecraft <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] RPN Calc App For Android

OK, you forced me to open my desk drawer all the way and find out what I had. After climbing over a bunch of mix 31 toroids, a set of Rapidograph pens, two mechanical drawing sets, ballpoint pens etc., I got to the last slide rule in the very back of the drawer.

I ended up finding my old 6 inch Pickett & Eckel log-log, a 15cm rule labeled Hoffman Electronics Corporation made in Denmark, a 12.5 inch Dietzgen “vector type log log rule” made in the USA that belonged to my father-in-law, and a Jeppesen CR-1 Flight Computer which is a circular slide rule 4.25 inches in diameter which calculates fuel consumption, density altitude, distance traveled given speed, wind problems, etc. And no, I’m not really interested in selling any of them.

Note that the lengths above are total end-to-end measured lengths.

These all have the glorious attribute that the batteries never run down.

73 Bill AE6JV


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