[Elecraft] K2: value of C130?!

Sverre Holm [email protected]
Mon Dec 29 08:28:01 2003


> I found in the manual of the K2 that C130 has a value of 
> 0.1uF and C129 a value of 0.01uF. It this really ok, or shoud 
> they be the same value? If they are correct, why are they differnt?
> 
The two capacitors are in parallel and decouple the bias voltage for the
PA. They should be different. This is a way of getting a broadband
decoupling. The 0.01 uF may be too small at low frequencies and the 0.1
uF may have too much inductance to be good at high frequencies. 

--
73, 
Sverre

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Sverre Holm, LA3ZA
www.qsl.net/la3za