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DIY Stompboxes => Building your own stompbox => Topic started by: william on June 13, 2004, 11:16:03 PM

Title: Someone to double check my math please.
Post by: william on June 13, 2004, 11:16:03 PM
I'm doing a project that requries some inductors but I'm needing to convert some values.

1.000H   1000uH
0.390H   0390uH
0.220H   0220uH
0.068H   0068uH
0.033H   0033uH
0.068H   0068uH

Thanks
Title: Someone to double check my math please.
Post by: Jason Stout on June 13, 2004, 11:25:22 PM
Your off by 1000...
1 anything = 1,000 milli anything = 1,000,000 micro anything = 1,000,000,000 nano anything = 1,000,000,000,000 pico anything = 1,000,000,000,000,000 femto anything.

EDIT
m = milli
u = micro
n = nano
p = pico
f = femto
Title: Someone to double check my math please.
Post by: smoguzbenjamin on June 14, 2004, 08:53:59 AM
I didn't know there was a prefix smaller than pico :mrgreen:
Title: Someone to double check my math please.
Post by: sir_modulus on June 14, 2004, 09:06:15 AM
well... I think he means milli henries, as it is an easier value to work with/find in this case. Yes, you have converted them right, just put mh, no uh as the suffix.
Title: Someone to double check my math please.
Post by: smoguzbenjamin on June 14, 2004, 10:13:21 AM
But uH means microHenry, which isn't milli at all. Replace those u's with m's and you're OK ;)
Title: Someone to double check my math please.
Post by: Peter Snowberg on June 14, 2004, 10:33:58 AM
Quote from: smoguzbenjaminI didn't know there was a prefix smaller than pico :mrgreen:
µ = micro  (1.0E-6)
n= nano  (1.0E-9)
p = pico  (1.0E-12)
f = femto  (1.0E-15)
a = atto  (1.0E-18 )
z = zepto  (1.0E-21)
y = yocto  (1.0E-24)
Title: Someone to double check my math please.
Post by: Jason Stout on June 14, 2004, 11:36:45 AM
Peter Wrote:
z = zepto (1.0E-21)
y = yocto (1.0E-24)

I wasent aware of zepto or yocto  :D
Title: Someone to double check my math please.
Post by: Jason Stout on June 14, 2004, 11:38:08 AM
Peter, do you know the code for inserting "mu" There was a post way back but....
Title: Someone to double check my math please.
Post by: Arno van der Heijden on June 14, 2004, 12:17:33 PM
Quote from: Jason StoutPeter, do you know the code for inserting "mu" There was a post way back but....

Ctrl-C
Ctrl-V
Title: Units of Merriment
Post by: Leandro on June 14, 2004, 12:29:18 PM
Quote from: Jason StoutPeter Wrote:
z = zepto (1.0E-21)
y = yocto (1.0E-24)

I wasent aware of zepto or yocto  :D

Don't forget Groucho and Harpo...   :P
Title: Someone to double check my math please.
Post by: niftydog on June 15, 2004, 12:06:29 AM
µ = hold ALT, type (on number pad) 230, release ALT.
Title: Someone to double check my math please.
Post by: Jason Stout on June 15, 2004, 12:19:11 AM
Thank µ niftydog!
Title: Someone to double check my math please.
Post by: william on June 15, 2004, 01:10:20 AM
My concern is I need a 1H inductor for a project, and I see mouser offers 1000uH.
Title: Someone to double check my math please.
Post by: Peter Snowberg on June 15, 2004, 02:59:57 AM
Unfortunatly, Mouser is not a very good place for big inductors.

Jason, here are some other ALT-codes. The only problem with these is that they may not be very universal across fonts, browsers, and platforms.

171 ½ (1/2) <- in case they don't display
172 ¼ (1/4)
234 Ω (Ohm)
236 ∞ (infinity)
248 ° (degrees)

Take care,
-Peter
Title: Someone to double check my math please.
Post by: zachary vex on June 15, 2004, 05:12:45 AM
Quote from: Peter Snowberg
Quote from: smoguzbenjaminI didn't know there was a prefix smaller than pico :mrgreen:
µ = micro  (1.0E-6)
n= nano  (1.0E-9)
p = pico  (1.0E-12)
f = femto  (1.0E-15)
a = atto  (1.0E-18 )
z = zepto  (1.0E-21)
y = yocto  (1.0E-24)

you forgot

v = vexto (1.0E-27)

8^)
Title: Someone to double check my math please.
Post by: gez on June 15, 2004, 08:51:15 AM
Quote from: zachary vexyou forgot

v = vexto (1.0E-27)

Hey, and don't forget that g = gezto!!!  :)
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