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