Part Number: 142AS310 (Electronic modules) Part Number: 142AS315 (Video preamplifier) Part Number: 142AS317 (Sum driver module) Part Number: 142AS319 (Range switching mod) Part Number: 142AS320 (Switching logic) Part Number: 142AS333 (Module) Part Number: 142AS335 (Electronic card assy) Part Number: 142AS336 (Electronic modules) Part Number: 142AS338 (Component) Part Number: 142AS344-12 (Component) Part Number: 142AS400-1 (Component) Part Number: 142AS4041 (No description) Part Number: 142AS404-2 (A&b) Part Number: 142AX (Switchcraft inc.)