[Elecraft] capacitor substitution & other problems

[Tom Hammond NØSS]

Hi Rich:

You wrote:
>While assembling my KNB2 noise blanker I dropped, then stepped on and
>broke C4, a 100pf blue mono cap. I've got a disk cap marked 101J, which
>I think is also 100pf. Can I use it or do I need the blue mono cap?

You should be able to use it, at least temporarily... I think I'd still 
consider replacing it later, just for aesthetic reasons.

>Also, after installing the 160m / 2nd rx board  I can now recieve 160
>sigs and the 2nd ant. input works OK on all bands. However, even though
>I'm using a regulated 3 amp pwr supply I now get an intermittant "low
>battery" message and the voltage side of the voltage/current display
>shows 00.0 volts (on all bands) although the current side seems to be
>OK....varies as you change the power....... but it does transmit as I
>have made on air contacts.

90% chance you accidently moved S1 on the Control Board, from its INT (12V) 
position to the EXT position which disconnects the supply voltage 
motitoring from the CPU and produces the precise symptoms you mention.

Good luck,

Tom Hammond   N0SS