240uh loopstick antenna coil. These are high quality ferrite antenna coils. The ferrite rods are 125 ui permeability. The ferrite rods are 10mm x 70mm.

For AM Radio match the 240uh coil with the Variable Capacitor Dual 335pf and 20pf. Use one 335pf section plus one of the 20pf trimmers for a total of 355pf. You can optionally include the other trimmer to lower the frequency range slightly if needed.

These are known as Ferrite Rod Loopstick Antenna Coils used in AM radios and Crystal ( Xtal ) Radio Sets. These are also known as a Antenna Coils, Ferrite Antenna Coils, Loopstick or Loop Stick , Magnetic Antenna Coil, Ferrite Rod Antenna Coils, AM ferrite Antenna Coils, Ferrite Rod Coils. Crystal Radio Antenna Coils. Crystal Radio Coils.