[Elecraft] 40m relay in K2 LPF stage - sorry if this is blank

[Don Wilhelm]

Jim,

I don't understand your terminology.  In most common usage, positive and 
negative have nothing that relates to continuity - a continuity 
measurement is usually expressed as an amount of resistance (usually 
low) between two points.  Alternately, the conductivity can be expressed 
in mhos, the inverse of resistance, but that is not normally used except 
in engineering.

As for making relay measurements in the Low Pass Filter area, every 
point will have a very low DC resistance to ground because T4 lead 3 is 
permanently connected to the LPF and the other lead of that winding 
(lead 4) is connected to ground.  One must lift either lead 3 or 4 of T4 
in order to make meaningful resistance or continuity measurements in the 
LPF.

73,
Don W3FPR

Jim Giercyk wrote:
> All,
>  
> I seem to have lost receive on 40m on my K2 (rev A, no 60m), and I am thinking that I have a bad relay in the LPF stage.  I'm seeing some strange readings and wanted to get a consensus before attempting to remove a relay.  So, here is what I see:
>  
> With power off, measuring for continuity with W1, pins 3, 7 and 8 on the relay are negative.  However, pins 2, 4 and 9 are positive.  That makes no sense.  With the power off, shouldn't 3 and 8 be positive?  Time for a new relay??
>  
> Thanks,
>  
> Jim 
>   
>