In my FE5680, I find that the trimpot for frequency adjust at one end 4.4V. The upper and lower voltages are 4.4 and 5.2 approx. Does this mean it is at the end of its life? There is a 4750 Resistor connected to the low end of the trimpot whose value can be reduced as a solution. Any experiences? Regards -- Raj, VU2ZAP Bangalore, India.