Cotter,
Yes, it is as easy as changing the turns spacing on L1 - but you will
have to squeeze the turns rather than spread them. Do to the mixing
scheme, tuning the VFO to a lower frequency raises the output frequency.
Be aware that the lower frequency may not be consistent from band to
band. That is due to variation in the exact frequency of the crystals
on the band board, so plan a bit of coverage just below your desired low
frequency limit.
73,
Don W3FPR
On 11/30/2015 2:56 AM, Cotter W. Sayre wrote:
Hi All!
I built my 40/20M K1 many years back, so I am not fully up on how to do
a simple VFO frequency change, even after re-reading the K1 manual.
I selected the 80Khz VFO tuning option when I built her (which I do not
regret!), but I want to change my K1's lower frequency to 7.025MHz on 40M
and 14.025MHz on 20M (I enjoy talking to Novices, Generals, and Advanced
licensees more than QRQ rapid-fire Extras!). How do I accomplish this? Is
at as easy as simply removing one turn from toroid L1 (or spreading the
turns outwards)?
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