Who's jtl3?

Tri-X, not Ilford...

I'm an electrical engineering student at Case Western Reserve University, hopefully graduating in 2014. I have a variety of interests and skills related to that field, and some entirely unrelated!

I have undertaken and am currently undertaking a variety of projects, mostly out of my interests in electrical engineering, physics, chemistry, and process control. I am a photography minor, which through building a darkroom in my basement, I have expanded that interest into industrial radiography with a Hewlett-Packard Faxitron unit I acquired surplus. Many of my photographs are also online.

I enjoy collecting surplus test equipment, and have acquired a sizeable collection, most of which I use regularly to support my projects. While most vintage / used test equipment is surprisingly reliable, I have out of necessity acquired significant experience in repair and calibration of these units, and it is out of my need to repair my instrumentation that I have tried to acquire a large manuals archive at this site as well. I also repair and calibrate instrumentation as part of my duties in working as a lab technician at Case Western Reserve University's Sears Undergraduate Lab. I specialize primarily in Hewlett Packard instrumentation, but am familiar with Electro Scientific, GenRad, Guildine, Philips, and Boonton.

Previously, I worked for SAND Holdings, LLC in Atlanta, GA developing embedded hardware, including their product NetDefib. Currently, I work for CWRU not only in the Sears Lab, but also for a much newer venture, Think[box], under the mechanical engineering department. In my spare time, I am also working on getting a company surrounding industrial radiography and the commercialization of some of my electronics projects called Telemark Six Instruments LLC.

I am an Eagle Scout, and I am happy to have my experiences in Scouting, as they have significantly contributed to my abilities in solving the problems I encounter every day. My other hobbies include playing the electric bass, being an occasional DJ at WRUW-FM 91.1 Cleveland on an electronic music show called Superhet, and participating in amateur radio at home and at CWRU, licensee KJ4HNN. At Case, I have also participated in an organization called the Tesla Orchestra, where I have both designed circuit boards and documented our fun, like this video of the Legend of Zelda video game theme song...


  • Surface mount soldering and rework down to 0402 passives & all leaded IC's
  • Schematic capture and PCB layout with Proteus EDA, currently learning Altium
  • Enclosure design and fabrication
  • Adobe Creative Suite software, primarily Photoshop, Illustrator, Premiere, and Audition
  • Very experienced in silver-gelatin photographic chemistry
  • Experienced in industrial safety & compressed gases handling
  • High proficiency with common test equipment (oscilloscopes, multimeters, logic analyzers, LCR meters, spectrum analyzers, signal sources, supplies) as well as their repair and calibration, from 1950s to today, including vacuum tube equipment
  • Have worked with NIM bin and Tektronix modular systems (TM500/5000) as well as modular scopes (7000)
  • Photomultipliers and scintillators including associated high-voltage equipment
  • Vacuum systems; oil roughing pumps and turbomolecular pumps (primarily Edwards and Leybold, respectively)
  • GPIB & RS232 ATE programming & bus analysis
  • Verilog, LabView, and C (primarily in embedded applications)
  • AutoCAD and working with mechanical drawings, primarily for component footprints
  • HF and VHF radio (as a radio amateur)