Browse Free Tools, References, and Utilities
I am a solo attorney, and this is the web space I maintain, but these pages are personal technical projects rather than legal content. I share them because they solve problems I have run into myself, and they may be useful to others with similar interests.
The tools are built as static HTML pages. That means everything can run in a normal web browser without requiring a separate app, email address, account, login, or database server. It also keeps my hosting burden low, which allows me to keep these resources freely available.
The factual data behind these tools may come from many public or third-party sources, but the selection, organization, interface design, explanatory text, and overall presentation are my own work. Links to these pages are welcome. Please do not commercially scrape, clone, or republish them in a way that substitutes for the original pages.
Amateur/Ham Radio
Calculators, reference tools, and searchable directories for antennas, repeaters, transceivers, and vintage radio components.
- Amateur Radio Math Toolkit: Antenna, RF, and Other Calculators
- Vacuum Tube Comparison and Substitution Reference Tool32,615 vacuum tubes
- WT3O's Free Interactive Amateur/GMRS Repeater Directory16,105 repeaters (15,252 amateur and 853 GRMS)
- Ham Radio Transceiver Comparison and Reference Tool950 amateur radio transceivers (desktop, mobile, and portable)
- Ham Radio HT Comparison and Reference Tool708 amateur radio transceivers (HTs)
Turntable Workbench Tools and Utilities
Browser-based utilities designed to help with setup, alignment, measurement, and troubleshooting without installing anything locally.
Lawn Care
A lightweight reference page for region-specific lawn care planning by zip code and turfgrass type.
Audiophile, Turntables, and Vinyl
A broader set of comparison tools, calculators, and lookup pages for turntables, cartridges, styli, phono stages, and related setup decisions.
- Turntable Comparison and Reference Tool1,608 turntable models
- Tonearm Resonance Calculator and Reference ToolChoose from manual calculation or 3,291 cartridges and 117 turntables/tonearms
- Phono Cartridge Comparison and Reference Tool3,324 cartridges
- Phono Pre-Amp Stage and Cartridge Overload Calculator and Reference ToolChoose from manual calculation or 3,324 cartridges and 1,120 pre-amps
- Phono Pre-Amp Stage Comparison and Reference Tool1,120 pre-amp models
- RCA Cable Capacitance Reference Tool
- Phono Cartridge Vertical Tracking Angle (VTA) Shim Calculator
- Phono Stylus/Needle Cross-Reference Tool7,354 cartridges and 6,006 styli/needles
- Vacuum Tube Comparison and Substitution Reference Tool32,615 vacuum tubes
Computers, Networking, and Technology
Small projects that are related to computers, networking, and digital files.
3D Printing
Small practical print projects that support cartridge setup, spacing, and playback accessories.