Montclair Experimental Nuclear Physics Cryo-refrigeration
For this project, I helped design and build a custom cryorefrigerator system for research applications in quantum computing and superconducting technologies. My focus was on creating a setup that balanced precision with accessibility — developing the structural supports, vacuum cans, and shielding needed to reach extremely low temperatures, while still allowing researchers to easily access each stage of the system. I integrated advanced temperature sensing and control electronics, designed custom wiring solutions, and set up a two-stage vacuum system capable of achieving high-vacuum conditions. On the cooling side, I worked with a pulse-tube cryocooler and an added helium-3 stage to push the system to millikelvin temperatures. The result was a modular and flexible platform that not only met the demanding technical requirements, but also supported ongoing experimentation and development
JFET BASED PREAMP DESIGN
I designed and built a JFET-based preamp inspired by the first 12AX7 stage of a classic Fender amplifier. The project began with schematic modeling in CircuitJS, where I crafted both a standard preamp configuration and a high-boost switch variation. I then brought the design into the physical realm, creating a breadboard prototype before moving on to a printed circuit board. I completed final checks, had the boards manufactured, and executed component placement followed by soldering to finalize the build. Throughout, I documented each step with progress images—from schematic and wiring to completed PCB assembly—highlighting a methodical process that blends both analog simulation and hands-on electronics craftsmanship.