PSN-L Email List Message

Subject: Re: spike problem
From: Larry Cochrane lcochrane@..............
Date: Sun, 04 Jun 2006 12:46:10 -0700

Hi Jón,

The electronic parts inside the sensor are resistors used for damping. They are not 
capacitors.  The resistors should not be removed.

Larry Cochrane
Redwood City, PSN

Jón Frímann wrote:
> Hi
>> Did you connect up the shield (screen) of the cable to the ground of the Amp/Filter 
>> board?
> The two colored wire is connected to the amp board properly, the same
> goes for the single colored one. This happens also with a cat-5 cable
> that is not screened, I was using that before I got screened cable. The
> sheld it self is not connected to anything, since I can't connect it to
> the ground, at least I don't know how to connect it to the ground. Since
> I don't see any connection for it. I know that the problem is not in the
> amp board. There are capacitors inside the geophone, I think that thease
> are capacitors. I can ground the shield of the cat-5 cable. If I get
> some instructions on how to do it. I can also replace the capacitors if
> I know what to buy and how to replace them. I know about good electronic
> store in Iceland that sells this type of items.
> This spike problem has been getting worse since I got the geophone, it
> was not there in the early start. In the past 2 months it has been
> getting really bad.
> Regards.


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