1. Why do transistors with same part number numbers (maybe from different manufactures) show different hFE values ? at that case , which one is the best , Low hFE or High hFE ?
2. When replacing a capacitor, as I know somewhat higher voltage (same capacitance) ones are preferred. but what is the max V level could go for ???
ex: can i replace 10uF/6.3V cap with 10uF/250V cap ..... without any problem ?????? (capacitor Size is not a matter here )
2. When replacing a capacitor, as I know somewhat higher voltage (same capacitance) ones are preferred. but what is the max V level could go for ???
ex: can i replace 10uF/6.3V cap with 10uF/250V cap ..... without any problem ?????? (capacitor Size is not a matter here )