Tony,
I would recommend you build the KX1 with the original value resistors.
If you cannot achieve 3.5 watts output with a 13.8 volt power source,
then change the resistors.
Check the power level again after installing the KXB3080 option.
If you will always operate the KX1 from batteries or a power source with
a voltage lower than 13.8v, you can install the power mod resistors at
the start.
It is not good for the KX1 Low Pass Filter components to run it above 5
watts.
73,
Don W3FPR
On 3/6/2017 9:07 AM, Anthony de Maillet wrote:
> Hi Gentlemen,
>
> I have a KX1 kit purchased here in the UK in February. The Power Output mod shipped with it (E850230.) I presume I fit these parts as described in Assembly Part III rather than using the originsl 10 and 20ohm resistors mentioned in the manual? I also have the KXB3080. Is there any benefit fitting this as part of the main construction or am I best to leave this and get 20m and 40m bands working first?
>
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