Circuitry Gallery A Raspberry Pi computer set up with an A/D daughterboard I/O cards and field wiring in the Keck 2 local controls PLC Switches and indicators for the dome simulator awaiting wiring A digital event counter built when I was fifteen years old. A bank of relays form the safety interlock system for the telescope. A view of the interior of the handwired dew heater controller Part of the Keck 2 logic board, this PCB assembly controls the various control and safety logic for the Keck 2 telescope. A sample of the control wiring and circuitry in the Servo Amplifier Assembly A makeshift breakout board for a THS7374 video amplifier A GPS clock constructed with point-to-point wiring The transformers for the Keck 2 telescope servo drives 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 small linear regulator built on perfboard for use in the dummy battery The remote current controller PCB and case prior to final assembly Patching in an experimental control system to move the Keck 1 telescope, one step closer to a major upgrade. A microcontroller utility PCB layout ready for manufacture A distribution video amplifier built around a THS7324 The five LM3405 based LED current regulator modules completed and awaiting testing Testing a macro setup that uses a Canon 50mm f/1.4 lens, and a 50mm extension tube mounted to the EOS-M. A hand wired microcontroller circuit intended to be used to control a pair of inclinometers in the Keck 2 dome. 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