[Elecraft] K1 RF Board - Resistance Checks

[Joseph M. Durnal]

Well that is a big help!  Thanks.  At least this time I know how to
count the pins on an IC, when I built the Filter board, I didn't but
assumed I did and was very confused.

Pin 3 starts at about 20k for a second or less then jumps to well over 50k.


Thanks & 73 de Joseph Durnal NE3R

On Jan 30, 2008 2:09 PM, Strode, Carl R <Carl_R_Strode at rl.gov> wrote:
>
>
> U4 pin 4 reads only 0.4 ohms - I think I have a problem here, but I have no idea what it could be, the manual said it should be > 50k.
> The schematic seems to show it as a ground.
>
> You should be checking U4 Pin 3
> Pin 4 is indeed ground.
>
>
> Carl Strode
> WA7CS
>