OK, so I've got this handy little capacitor conversion table that I use when working with caps. The table allows for quick conversion of cap values from pF to nF to uF, and vice versa. It's also pretty helpful in helping to decode the little cap value code on each cap, i.e. a cap with the marking 223 is .022 uF. I was wondering if anyone here would be interested in such a table to keep at their work area for easy reference. I have the table in Excel and PDF formats. I guess it would be easiest to somehow post it here so anyone who wanted a copy could have access to it. Maybe even somehow post it to the Wiki. It's a great tool and I'd be glad to share.
Reference material is alway welcome. I think the wiki would be an excellent place to park it.
FWIW: You can use Google to translate values between pF, mF and nF.
For instance, If you search for "250 picofarads in microfarads"
Google will return this...
"250 picofarads = 0.00025 microfarads"
More about the Google calculator
http://www.google.ca/intl/en/help/features.html#calculator
Have you seen this? http://www.justradios.com/uFnFpF.html It doesn't tell the codes for caps but it's where I started. If you have any intress to share your chart, go a head every good info is welcome in here.
Janne
Yeah, please share it GtrmanMoe, if you can post it somehow.
This page (http://www.arar93.dsl.pipex.com/mds975/Content/components01.html) has the colour codes for poly caps listed (scroll way down). But there's a mistake on the page where it talks about reading three digit cap codes. It says:
QuoteSo 100 would be 10pF multiplied by zero i.e. 10pF.
But 10 x 0 != 10, 10 x 0 = 0 !!! The third digit is a power of ten exponent. The code "100" actually reads 10 x 10^0 = 10 x 1 = 10. But the tables are correct.
I'm guilty of mis-reading units (ahem (http://www.diystompboxes.com/smfforum/index.php?topic=65968.msg523477#msg523477)) but in my defense that was very late at night. :) Still, is the uF <-> nF <-> pF conversion awkward at first for Americans (or anyone else who didn't grow up with the metric system)? Once you remember the order the go in ( uF > nF > pF) it's just multiplying and dividing by 1000 to convert. Example: 47 uF is 47 x 1000 = 47,000 nF is 47 x 1000 x 1000 = 47, 000, 000 pF.
Here's the code:
http://kb5wck.com/capcode.php
This thing's a bit handy sometimes:
http://www.translatorscafe.com/cafe/units-converter/electrostatic-capacitance/calculator/picofarad-%5BpF%5D-to-nanofarad-%5BnF%5D/ (http://www.translatorscafe.com/cafe/units-converter/electrostatic-capacitance/calculator/picofarad-%5BpF%5D-to-nanofarad-%5BnF%5D/)
Here's a downloadable pdf. cap conversion table.
http://amplates.blogspot.com/2007/07/new-download-cap-codes-revealed.html
dave
Quote from: Pushtone on March 27, 2008, 05:25:02 PM
Reference material is alway welcome. I think the wiki would be an excellent place to park it.
FWIW: You can use Google to translate values between pF, mF and nF.
For instance, If you search for "250 picofarads in microfarads"
Google will return this...
"250 picofarads = 0.00025 microfarads"
More about the Google calculator
http://www.google.ca/intl/en/help/features.html#calculator
The Google calculator is good for all kinds of other things too:
Like "What is the answer to life, the universe, and everything?" (http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rls=RNWN,RNWN:2006-44,RNWN:en&q=The+answer+to+life+the+universe+and+everything+is#hl=en&rls=RNWN%2CRNWN%3A2006-44%2CRNWN%3Aen&q=what+is+the+answer+to+life%2C+the+universe%2C+and+everything%3F+&btnG=Search&nochrome=1)
And "number of horns on a unicorn" (http://www.google.com/search?q=number+of+horns+on+a+unicorn&sourceid=navclient-ff&ie=UTF-8&rlz=1B3GGGL_enIN176__243)
Also once in a blue moon (http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=RNWN,RNWN:2006-44,RNWN:en&q=once+in+a+blue+moon)
And if you have ever wondered how fast "Furlongs per Fortnight" (http://www.google.com/search?hl=en&q=golden+ratio&btnG=Google+Search#hl=en&q=furlongs+per+fortnight&btnG=Search&nochrome=1) is.
--john
Quote from: jpm83 on March 27, 2008, 05:27:45 PM
Have you seen this? http://www.justradios.com/uFnFpF.html It doesn't tell the codes for caps but it's where I started. If you have any intress to share your chart, go a head every good info is welcome in here.
Janne
Thats what I use.
On a side note I just got in a order from them today.
Universal capacitance convertor:
http://www.unitconversion.org/unit_converter/electrostatic-capacitance.html
Capacitor Network Calculator:
http://lectureonline.cl.msu.edu/~mmp/kap19/RR480app.htm
Color codes of Resistors, Capacitors and Inductors:
http://www.silentmods.com/modding/color_code.html
4, 5 & 6 band Resistor Color Codes (& more):
http://www.samengstrom.com/nxl/3660/4_band_resistor_color_code_page.en.html
Help identifying Vintage Components (in French, but it's pretty basic):
http://egraffin.free.fr/index.php?section=tools&subtools=transgerm
Transistor ID & Testing:
http://www.tpub.com/neets/book7/25h.htm
~~~~~~~~~~~~~~~~!!!~~~~~~~~~~~~~~~~~
That should set you up pretty well!
Cheers,
- JJ
I am building a replica of an old circuit that had a tropical fish with brown,black,yellow,white and red bands. What value is this as I plan on using orange drops. Thanks