[Elecraft] K2 - RF choke identification

[Brett gazdzinski]

You can buy a DMM that measures inductance.
I have a wavetech meterman model that was under $100.00
that does capacitance from many micro farads to pico farads,
inductance from henrys to micro henrys, frequency
to 10 Mhz, plus all the other usual DMM stuff.

I also ran into problems with some chokes, on a green
body the colors don't show well, and the DMM told me
what was a choke and what value it was.

Its also great to measure vari cap settings in homebrew
stuff, and to identify what value those big chokes are
that I use for the big tube transmitters, the inductance 
of coils used in the homebrew receivers, even the range
of slug tuned coils....

Well worth the investment is you do a lot of electronics...

Brett
N2DTS

  
> 
> let me start out with the fact that i am colorblind..
> 
> this isn't too bad for resistors, as i can always use an ohmmeter to  
> verify..
> 
> but for rf chokes, this is killing me..
> 
> i usually ask my son and wife to help me sort them, but this time,  
> even they are having alot of trouble sorting them out..
> 
> it looks like we have them all sorted out but one..
> 
> RFC 15 does have a tan body, but it is the same size as the other  
> 100uH choke, as the builder note talks about this..
> 
> the one remaining i cannot ID is RFC10..  it is supposed to have a  
> green body, and marked brown black red..
> 
> the last one i have is VERY small, and marked green-brown-green..
> 
> it is very tiny, which makes sense, as the value is alot smaller..  
> but the colors are not even close..
> 
> anyone have any ideas?
> 
> thanks!
> 
> 73 de kb8qpt
> 
> ___
> peace,
> sergio
> photographer, journalist, visionary
> www.coffee-black.com
> 
> 
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