[Elecraft] 160 meters...

[Don Wilhelm]

Sandy,

I am currently working on a 160 and 80 meter board for the K1.

As first pass, I will be using the component values and circuit
configuration from the K2 bandpass and low-pass filters - which means using
4.7 uH inductors in the bandpass filter instead of the 1 uH that are used
with the K1.
Steve K1HJ has used the following values for the pre-mix bandpass - C1 & C5
= 680 pf, C2 & C4 = 2700 pf, and C3 = 12 pf - I will try those values (160
will be band 1 on the K1 board).  I ordered a 9.8 mHz crystal from
International Crystal Manufacturing.

The parts to do the job are due in here in the next day or so, so if you can
'hang in there' for a while, I will provide a report after I have it up and
running.

73,
Don W3FPR

----- Original Message -----

> Hello All,
>     I'm still making an attempt to contact any of you out there who
> may have worked up or know someone who has worked up a
> set of component parameters for 160 meter coverage with the K1
> transceiver using a 2 band board.  I would like to order a 2 band
> RF board with components for 80 meters and whatever
> transformers Elecraft has available to add a 1800-1880 "band"
> to the other half of the 2 band card.  I don't want to have
> to "re-invent the wheel" if someone else has played with it
> or done it already.