Can anyone help my buddy Richard, KB4HF? "I am trying to double check my L4 toroid I think it has 20 turns with taps. I would like to verify where the taps are located. The amp is a 374 with a silver face no tune 3 8874 tubes. Rich KB4HF" 73..de John/K4WJ John / K4WJ ex KN8PXG K8PXG K8WJ ZF2HZ