[Elecraft] RE: TUNING RATIO! (K1)

[Morrow, Michael A.]

Jim wrote:

> The K1 uses a 10 turn potentiometer for tuning, so with the
> 80 kHz option the tuning rate is 8 kHz per turn and with the
> 150 kHz option the tuning rate is 15 kHz per turn.

Before R19 was added (100k resistor from VFO pot high side to wiper)
in later K1s, the tuning increment per turn varied from 10 kHz/turn
to 23 kHz/turn for the "150 kHz" (but typically 170 kHz in reality)
option, depending on where the pot wiper was.  Similar variations of
about half those occurred in the "80 kHz" option.  Anyone with an
older K1 might want to consider installing R19 if they haven't yet
done so.

Mike / KK5F