GW Circuit # 1400
(Revised as #1400-A on 1-14-92)

(11-18-89)

Note: Unit is totally shielded in an aluminum box

 
Remarks:

 
1.  Use J₁ output jack for external filters and/or meters

 
2.  Use x10 amplifier gain for gravimeter response of g-field only. Use x100 amplifier gain for display of "cosmic" g-variations.

 
3. Use variable gain control to set system sensitivity.

 
4. Use set control to position response on meter.