PSN-L Email List Message

Subject: Damping Resistor Value
From: Ed Ianni eianni2@...........
Date: Fri, 04 Oct 2002 09:29:16 -0400

Hi All;
    I have been using "oil" damping on my Lehman home built seismograph. I would like to replace the "oil" damping with "resistor damping" across the coil. Can anyone tell me the ohmic value it should be, or what the procedure is to calculate it? Thanks, Ed. 








Hi All;


    I have been using "oil" damping 
on my Lehman home built seismograph. I would like to replace the "oil" damping 
with "resistor damping" across the coil. Can anyone tell me the ohmic value 
it should be, or what the procedure is to calculate it? Thanks, 
Ed. 
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