HanRongDa HRD 104 Stock vs 200mm ferrite comparison
IF YOU NEED TO REPAIR YOUR HAFLER BECAUSE OF DEFECTIVE MOSFETS, OR JUST WANT TO RE-NEW OR UPGRADE YOUR 40 YEAR OLD MOSFETS, THE MUCH NEEDED MOSFET CONVERSION KIT IS HERE! LAST PICTURE SHOWING 20KHZ DISTORTION AT FULL POWER ONE CHANNEL DRIVEN WITH KIT INSTALLED IN A DH-200.
