Bad Boys Rape Our Young Girls, But Virgins Go Without
Sequence of colour codes on a resistor;

Black Brown Red Orange Yellow Green Blue Violet Grey White

Learnt it while I was an apprentice, over 25 years ago. I'm sure it's not obsolete, there's still resistors being used nowadays, I just haven't used it for over 24 years, so why I would still remember it is beyond me.
(lardyboy Next stop, Fissplap Central, Fri 1 Jul 2011, 13:57, 7 replies)

Because you rape virgins

(moon monkey is busy making memories worth repressing, Fri 1 Jul 2011, 14:11, closed)

This is still used
there was a bit of a scandal a few months ago because some college professor got fired or bollocked for telling it to his students.
(username failed moderation, Fri 1 Jul 2011, 14:20, closed)

I think that the teacher got into so much trouble for using the 'black boys' variant
(Benzyl, Fri 1 Jul 2011, 22:09, closed)

Exactly.
And blue virgins.
( kila is reading clocks upside-down as usual, Sat 2 Jul 2011, 6:43, closed)

It's all surface mount these days. No stripes there...
The worst thing is, that although we can remember the colour codes, can we actually see the bands?
(Kliper Filllets Getting noticed by twats on the internet since, Fri 1 Jul 2011, 15:16, closed)

one lecturer was a valve (that's vacuum toobs for you 'merkins) guru
and used "Better Be Right Or Your Grid Bias Voltage Goes West"

he was still using it when he was teaching us in the 90s.

Being a latecomer to valves (I've since built some amplifiers), I now know enough to understand his aide memoire.

a grid roughly equates to the base of a transistor, the anode the collector and the cathode the emitter. so if the grid bias is badly wrong, you could end up making the current flow from anode to cathode far exceed the design limits of the valve. in laymans tems this often means bangs, flames and smoke as various other resistors and capacitors briefly, but spectacularly, exceed their own ratings.

good times!
(f_rev, Sun 3 Jul 2011, 15:48, closed)

This one I like...
Also
Change Grid to Gate and it's current again.


See what I did there ? Oh well, please yourselves...
( DukeEuphoria Comes highly reccomended, Tue 5 Jul 2011, 12:05, closed)