[Elecraft] K2 RF Capacitor ID

[Don Wilhelm]

Those capacitors are using the standard 3 digit code - two significant 
digits followed by a multiplier (9 is used for a multiplier of 0.1 in 
this type of identification).

010 is 1pF
030 is 3pF
270 is 27pF
229 is 2.2pF

I don't know where your 270pF (marked 271) capacitor may be, you didn't 
list it.

With manufacturers discontinuing many thru-hole components, it is 
getting more and more difficult to keep the manuals current with the 
available supply.

73,
Don W3FPR

On 7/20/2018 12:10 PM, AE0MM via Elecraft wrote:
> I'm having trouble identifying a few capacitors used in the assembly of the K2 RF board.
> 
> C72: "271"
> C45: NPO "1", black top
> C33: 2.2pf "2R2" or "2"
> C198: NPO "27" or "272"
> 
> What I have:
> a blue "010"
> a blue "030"
> a yellow "270"
> a yellow "229"
> 
> I suspect the "229" is a 2.2pf capacitor for C33.
> The "270" could be 27 or 270pf, but I'm not sure; it might be for C72.
> The "010" could be the 1pf for C45, but it doesn't have a black top.
> Could the "030" be for C198? This suggests it could be: http://www.elecraft.com/Apps/caps.htm
> 
> I'm having trouble measuring capacitance for these tiny capacitors. Values are all over the place. Any suggestions for verifying the values and positively IDing them?
>