Apple Floppy Drives (was: More Apple Pimpers)

From: Eric Chomko <vze2wsvr_at_verizon.net>
Date: Thu Nov 8 21:53:16 2001

Tony Duell wrote:

> > I can do a lot of things faster on a slide rule than an electronic
> > calculator.
>
> A few years ago (but long after electronic calculators were common), a
> student asked me for help calculating the resistor values in a potential
> divider. I asked him for a calculator, and he, intending to confuse me,
> handed me a slide rule

To which you should have responded:

Bad Boys Rape Our Young Girls But Viloet Gave Willingly

My apologies to all women, but that little phrase is the best way to remember
the resister code: BBROYGBVGW

As in: black, brown, red, orange, yellow, green, blue, violet, gray, white

Eric

>
>
> (Lesson 1 : Don't try to confuse me with old calculating devices. It
> won't work!).
>
> I then showed him how the slide rule was actually _more_ use for this
> problem than a calculator. I just set the ratio of the resistors on it
> (it was something simple like 1:2.5) and then slid the cursor along
> looking for places where prefered valuse of resistors were almost lined
> up. The closer they were, the better the choice. It took a few seconds to
> find a pair of resistors that were close enough to work.
>
> (Lesson 2 : Because a device is old, and has been replaced for many
> applications doesn't mean that the device is useless for all applications)
>
> I now want a slide rule with at least the E24 series marked as dots on
> the scales. It would be very useful for this sort of problem.
>
> -tony
Received on Thu Nov 08 2001 - 21:53:16 GMT