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2011/11/23

1145 Vented IVC with N2 gas.
1204 Tower thermometer connection looked OK at room temperature. No shorts to ground.
1715 Start tower assembly procedure.
1830 One severed wire bond found on Qi DIB1 and respective pad on crystal. Plucked wire bond to prevent possible short to chassis. Qi on DIB1 passed detector level continuity check, so one wire bond is still present.
1915 Conduct tower level continuity check. No shorts to chassis found.
Detector G102 DIB 1
side coax ZB1-4-8 date/who: 2011-11-22 HC & AC
face 2
+ve lead -ve lead signal measured
3 4 QET B 127 Ω
9 chassis LED1 Rforward 778 kΩ
10 chassis LED2 Rforward 754 kΩ
9 chassis LED1 Vforward 1.103 V
10 chassis LED2 Vforward 1.102 V
chassis 9 LED1 Rreverse <0.3 nS
chassis 10 LED2 Rreverse <0.6 nS
3 11 Qo Rbias 25.0 nS
12 11 Qo C coupling <0.1 nS
12 13 Qo Rfeedback 25.5 nS
3 14 Qi Rbias 26.0 nS
15 14 Qi C coupling <0.1 nS
15 16 Qi Rfeedback 25.0 nS
Detector G102 DIB 2
side coax ZB1-4-6 date/who: 2011-11-22 HC & AC
face 5
+ve lead -ve lead signal measured
5 6 QET C 352 Ω
6 8 QET C-D 362 Ω
7 8 QET D 1.25 kΩ
9 chassis LED1 Rforward 771 kΩ
10 chassis LED2 Rforward 752 kΩ
9 chassis LED1 Vforward 1.106 V
10 chassis LED2 Vforward 1.105 V
chassis 9 LED1 Rreverse <0.3 nS
chassis 10 LED2 Rreverse <1.1 nS
5 11 Qo Rbias 25.5 nS
12 11 Qo C coupling <0.1 nS
12 13 Qo Rfeedback 26.0 nS
5 14 Qi Rbias 25.0 nS
15 14 Qi C coupling <0.1 nS
15 16 Qi Rfeedback 26.0 nS