234
Electronics
The following assemblies make up the MSD electronics:
• Electronics module
• Main board
• Signal amplifier board
• HP-IB/MS control card
• AC board
• Low voltage (ac-dc) power supply
• High voltage (HED) power supply
• Toroid transformer assembly
• Back panel connectors
• Status display and power switch
•Side board
• Turbo pump controller
Each is discussed in this chapter. Except for the Back panel and connec-
tors, Status display and power switch, and Interfacing to other devices
sections, most of this material is not essential for day-to-day operation of the
MSD. It may be of interest to persons responsible for servicing the MSD.
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