[Elecraft] switching on click .. long thread

[Kevin Rock]

I have run my K3 from batteries for many years.  Since I first got it in  
fact.  I do have a power supply just in case but 4 Trojan T-105s keep its  
fire lit.

I do not experience any thumping, whooshing, ringing, or other noises.   
Except one: the relay clicking in.  But, I expect that.

It would be nice if I could get it to sound like the TARDIS whizzing about.
    Kevin.  KD5ONS




On Sun, 04 Sep 2011 19:41:22 -0700, John Ragle <tpcj1r03 at crocker.com>  
wrote:

> Please excuse the fact that I cut the tail off this post. I think there
> are enough copies floating in reflector land that the subject will be
> recognized.
>
> It is interesting that a significant fraction of the respondents do not
> experience the thump reported by others. Although I don't consider this
> thump or click a defect, I wonder if it can have to do with the type of
> power supply being used, e.g. a regulator transient caused by the sudden
> load. I do not experience this thump, and I am running my K3 off a 13.8
> V Pyramid switcher...definitely not what I would call a super-quality
> power supply...I have not tried a battery, but am tempted by curiosity
> to do so. What sayeth the multitude?
>
> John Ragle -- W1ZI