Hi

> Have you connected the shield wire to the ground connection on the
board
yet?

No. I don't know where it is on the board. I've been trying to look for
it, but not found it.

I am going to have to buy a 330 ohm resistor. I know that if i
disconnect the geophone cable from the amplifer board. I get flat line
and no spikes at all.

> (All of your
> connections are soldered aren't they? If not, then do so.)

Connection inside the geophone are soldered properly. I have terminal
block screws on the amplifer board.

Regards.
-- 
Jón Frímann
http://www.jonfr.com
http://www.simnet.is/jonfr500/earthquake/

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