[Elecraft] K1 15 Meter Capacitors on 2-Band Filter Board

[Mike Morrow]

>...The table shows C17 & C19 as 56, but the components I
>have are labeled 560J.  Do I have the right capacitors

There's a very good summary of capacitor marking conventions at:

http://xtronics.com/kits/ccode.htm

There's some interesting non-obvious conventions to this marking system.  Most know that a capacitor marked ABC is equal to AB x 10^C pF.  So yours are 56 x 10^0 = 56 pF.  Similarly, 562 would be 56 x 10^2 = 5600 pF.

So what would 569 be?  Not 56 x 10^9 or 56000000000 pF, as you might think, but actually 56 x 0.1 = 5.6 pF.  When the third digit is 9 the multiplier is 0.1.  When the third digit is 8, the multiplier is 0.01.  You'd be surprised how few know that.

The J on your caps is the code for the value tolerance in percent.  All this is explained on the web site cited above.

73,
Mike / KK5f
(Sorry this topic isn't about the K3...not!)