Free Analog Tools
Every tool on this page answers a practical question related to analog setup.
Each one runs directly in your browser, free to use, with no account required. Nothing you type into a tool is stored or sent. The mathematics behind every tool has been checked against published engineering sources.
Arc protractor generator
Which alignment geometry best suits your tonearm? Generate and print a custom arc protractor calculated for its exact pivot-to-spindle distance.
Tonearm resonance calculator
Will your cartridge and tonearm work well together? Enter the tonearm’s effective mass and the cartridge’s compliance to calculate the resonance frequency and compare it with the recommended range.
Cartridge loading and gain calculator
What resistive loading and phono-stage gain does your moving coil cartridge need? For moving magnet cartridges, the tool also helps identify a suitable capacitive load.
Step-up transformer matching calculator
Is a step-up transformer suitable for your low-output moving coil cartridge? Compare turns ratios, gain, and reflected loading to find a combination that works well with your MM input.
Strobe disc generator
Is your turntable running accurately at 33⅓ or 45 rpm? Generate and print a strobe disc, then check its speed using a suitable mains-powered light source.
Should a result raise a question about your setup, please write to us. Guidance is always complimentary.
L’Or du Son
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