Miniductor™, Airdux™, and
Barker & Williamson air wound inductors have been an industry standard since their introduction in 1932. They offer high Q and mechanical stability, and come in a variety of sizes. Diameters from 1/2 to 6 inches, coil lengths to 22 inches, and wire sizes from AWG #8 to #24. The coils are wound with tinned solid copper wire that is embedded in plastic ribs.
Two coil styles are available:
Miniductors™ - ribs are flat plastic strips, intended for lower power applications (up to 150 Watts)
Airdux TL™ - ribs of polycarbonate round rods, intended for high power applications and/or vibration, with maximum stability