I just built a 5f1 from some organ transformers. It sounds pretty cool. The voltages are high when compared to expected voltages for a 5f1. I used a 340-0-340 power transformer so this isn't a surprise. I understand there are two methods most people use for lowering voltages: Zener diodes or a high wattage resistor. I'm hoping for some guidance on which method to use, why, and how to do it. Some specifics would go a long way to helping me out. Thanks!