Hello! I'm Jeff, the Fubsy Polymath.

You might know me as tjscientist. I make things edible, audible & hackable.

Engineer since birth — soldering at five, still building robots, synths, clocks & hacking tools. More about me →

Alcohol

Alcohol Brewing, Distillation, and Fermentation. Live

Analog Computers

Analog Computers Op-amps that solve equations — computing in continuous voltage. Live

Antennas

Antennas The hardware between the radio and free space — dipoles to dishes, BALUNs, matching networks, measurement gear, and satellite tracking. DIY build + commercial buy throughout. Live

Clocks

Clocks Nixie, LED & mechanical — telling time with style. Live

Digital Computers

Digital Computers The machines that went discrete — minicomputers and microcomputers, studied to the gate and rebuilt on the bench. Live

Electronics

Electronics Designs for amps, synthesizers, effects, and so much more. Live

Firearms

Firearms Standard, historical & accurate movie replicas. Live

Food

Food Food & recipes — what's coming out of my kitchen. Live

Hacking

Hacking Hardware, RF & security tinkering. Live

Iconic Machines

Iconic Machines A museum-style collection of famous reproduced and collected machines (digital and electromechanical), each a multi-volume deep dive ending on the open-source build or artifact. Launch units: Enigma (Open Enigma) and the Apollo DSKY (Open DSKY). Live

JoJo Bee's Sweets

JoJo Bee's Sweets Honey, beeswax, maple syrup & small-batch baking from our family hives. Live

Music Studio

Music Studio Synths, effects & the home studio — building the sound. Live

Other Stuff

Other Stuff A place for things that have no place. Live

Radios

Radios Ham handhelds, HF rigs, DMR hotspots, shortwave & weather RX, CW gear, and a CubeSat simulator. Live

Robots

Robots Robot Builds, Restorations, and Concepts. Live

Scanners

Scanners Scanners old & new, ham radios, mesh networks, and so much more. Live

Slide Rules

Slide Rules Computing before silicon — logarithms you can hold. Live

Test Equipment

Test Equipment From vacuum-tube testers to spectrum analyzers and everything in between. Live