1962 Utility Signal Processor

• 4 attenuators / 2 offsets
• 4 inverters
• one 4:1 mixer / two 2:1 mixers (8:1 with inverted inputs)
• minimum maximum selection circuit

• 42 mA +12V
• 50 mA -12V
• 0 mA 5V

No info about availability.