Resistor Colour Code

Wolframore

Joined Jan 21, 2019
2,619
Yeah I agree... some of them were more complicated than the actual math.... lol I liked PIE and EIR because it sounded like EAR.
 

WBahn

Joined Mar 31, 2012
32,890
Oh yeah had a bunch of them in music too:

Every Good Boy Deserves Fudge -
Good Boys Do Fine Always...
i no longer us them... but it helps loads while learning... learned when I was about 8 and still remember them.
The only one I ever used was "FACE", name the notes in the spaces of the treble clef. Since I never played an instrument that used the base clef, I never had need to know it.

I have often wondered why they weren't simply made compatible and simply offset by an integer number of octaves. Seems like it would have made reading music a lot easier and it doesn't seem like the two-note shift would have been that big a deal. I assume they evolved someone independently.
 

Wolframore

Joined Jan 21, 2019
2,619
I did piano; then composition... ugh... transposing for B flat and F instruments while writing in A Maj... can you say fun? Once your mind clicks in its not bad.... but it take a while to get to that.
You can write bass notes on treble clef... I've done it at times if I felt lazy and move the clef mark to where you want it and put octave marks in... you could just put octave marks on treble clef (like 8vb....) and therefore read as Bass Clef but for Piano it works well to have middle C inbetween and when you need one clef it's very clear...
 
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SamR

Joined Mar 19, 2019
5,491
Power is as easy as PIE. Then there those of us what am colorblind. I can kinda interpolate/extrapolate the color code but an ohmmeter helps to confirm my guesses. I need large amounts of color to saturate my retinas and can pass the drivers exam but there is not enough on small resistors to allow me to get enough saturation. I could never pass the AT&T color test for splicing cable.
 

Wolframore

Joined Jan 21, 2019
2,619
yeah it's just general hazing... nothing to worry about... I'm sure I've had worse in the Marines. Does make for an interesting topic.
 

MaxHeadRoom

Joined Jul 18, 2013
30,680
Been watching 'The Code', I had to go on line to determine who had what rank (insignia), A little different to the British Army!;)
Max.
 

Wolframore

Joined Jan 21, 2019
2,619
Only a little... I like that UK you get warrant officer after staff sergeant... that's cool. People should be respected when they have that many years in service and know how it works better than some boot lieutenant.
 

Wendy

Joined Mar 24, 2008
23,798
V=IR
One of the first formulas I learned in electronics.
P=VI
was the second.
Simple Algebra yields all the rest.

Then there is the voltage divider.

VOUT=VIN(R1+R2)/(R1+R2)

I forgot the latter a while back, I was seriously afraid I was losing it. But Wikipedia came to my rescue, and I'm much better now.
 

BobaMosfet

Joined Jul 1, 2009
2,211
I'm really surprised nobody is getting this... I would expect at least one of the older people with experience in analog electronics, perhaps 50's/60's era to have been exposed to this mnemonic... I'll add a little more to it--

ELI the ICE man went to see IDA the...

Any takers?
 

marcf

Joined Dec 29, 2014
300
Let us not forget SARL PARC.

I find the voltage divider equ ER1 = R1/(R1+R2)* E or ER2=R2(R1+R2)*E helpful as well.

I would really like to know what goes with IDA. (Inductor Delays Amps) ?
 

BobaMosfet

Joined Jul 1, 2009
2,211
Let us not forget SARL PARC.

I find the voltage divider equ ER1 = R1/(R1+R2)* E or ER2=R2(R1+R2)*E helpful as well.

I would really like to know what goes with IDA. (Inductor Delays Amps) ?
You are the only person that is close enough, so here it is (and used the shorter version)--

ELI the ICEMAN took IDA the CAD to SARL PARC

ELI voltage (E) leads current (I) in an inductive (L) circuit
ICE current (I) leads voltage (E) in a capacitive (C) circuit
IDA an inverter (I) converts dc (D) to ac (A)
CAD a converter (C) converts ac (A) to dc (D)
SARL a series circuit (S) above resonant frequency (AR) is inductive (L)
PARC a parallel circuit above resonant frequency (AR) is capacitive (C)
 

Thread Starter

MrChips

Joined Oct 2, 2009
34,829
V=IR
One of the first formulas I learned in electronics.
P=VI
was the second.
Simple Algebra yields all the rest.

Then there is the voltage divider.

VOUT=VIN(R1+R2)/(R1+R2)

I forgot the latter a while back, I was seriously afraid I was losing it. But Wikipedia came to my rescue, and I'm much better now.
Small mistake in the nominator (R1 + R2).
Choose one, not both.

(R1 + R2) / (R1 + R2) reduces to 1.
 

BobaMosfet

Joined Jul 1, 2009
2,211
Power is as easy as PIE. Then there those of us what am colorblind. I can kinda interpolate/extrapolate the color code but an ohmmeter helps to confirm my guesses. I need large amounts of color to saturate my retinas and can pass the drivers exam but there is not enough on small resistors to allow me to get enough saturation. I could never pass the AT&T color test for splicing cable.
Flashlight + 50mm zoom lens held backwards may give you the saturation you require ;)

Just get one used, not new. I got sorta lucky. I was at a rock concert as the band photographer and tripped over an electrical cable across a stairway (pitch-black) while focused on the stage. I saved the DSLR, but the lens came off, broke at the bayonet mount. Not one to toss a $200 lens (even busted), It's been ever so helpful in electronics all these years.
 
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