Kintronics Laboratories Variable Inductor Coil LV16-20-3 Removed from BE (Broadcast Electronics) AM-10A transmitter output tuning network. Transmitter was working fine when shut down because station moved to FM. Black coating on some of the silver appears fairly lite. According to the AM-10A manual this inductor (L4 and L6) is variable, 16uH, and 20amp current rated.