Following are links to my online Javascript based calculators:

Inductance:

Single Layer Coil on a Round Form

Single Layer Coil on a Rectangular Form

Multi Layer Coil on a Round or Polygonal Form

Mystery (Crystal Set) Bifilar Coil

Miscellaneous – Radio:

Bandspread – L/C Resonance

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This page last updated: February 25, 2021

Copyright 2014, 2015, Robert Weaver