GW Circuit # 1400
(Revised as #1400-A on 1-14-92)
Note: Unit is totally shielded in an aluminum box
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.