LBA Technology "Blue Line" RF inductors are based on over 30 years of proven international performance. Blue Line inductors are unsurpassed for hi-Q, stability, and low RF losses. These inductors are manufactured from heavy silver plated copper conductors and brass fittings, treated to resist tarnishing. Windings are insulated with melamine or G-1 0 epoxy laminates. These materials are recognized for their exceptional RF qualities, arc resistance, mechanical strength, and low moisture absorption. Supporting frames are engineered to permit maximum access to windings for convenience in adjustment. The metallic frames are separated by insulators to prevent induced current flow.