Circuitry Gallery I/O cards and field wiring in the Keck 2 local controls PLC Patching in an experimental control system to move the Keck 1 telescope, one step closer to a major upgrade. The five LM3405 based LED current regulator modules completed and awaiting testing A distribution video amplifier built around a THS7324 A sample of the control wiring and circuitry in the Servo Amplifier Assembly Part of the Keck 2 logic board, this PCB assembly controls the various control and safety logic for the Keck 2 telescope. A bank of relays form the safety interlock system for the telescope. Switches and indicators for the dome simulator awaiting wiring A makeshift breakout board for a THS7374 video amplifier A microcontroller utility PCB layout ready for manufacture The new wiring for the motor and encoder including the new terminal strip Handwired perfboard and standard 74xx digital logic make up an event counter. A digital event counter built when I was fifteen years old. A Raspberry Pi computer set up with an A/D daughterboard The transformers for the Keck 2 telescope servo drives The remote current controller PCB and case prior to final assembly A GPS clock constructed with point-to-point wiring A hand wired microcontroller circuit intended to be used to control a pair of inclinometers in the Keck 2 dome. A small linear regulator built on perfboard for use in the dummy battery A view of the interior of the handwired dew heater controller Testing a macro setup that uses a Canon 50mm f/1.4 lens, and a 50mm extension tube mounted to the EOS-M. Related Posts GenPIC, A Microcontroller Utility PCB Wiring Old School Circuitry A Matter of Control Share this:WhatsAppRedditEmail Author: Andrew An electrical engineer, amateur astronomer, and diver, living and working on the island of Hawaiʻi. View all posts by Andrew