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Old 12th July 2010, 03:29 PM   #1
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Default Voltage drop across JFETs?

Trying to incorporate the circuit here The Rat Bypass in to my projects and just trying to work out the value of the dropping resistor for the LED on an individual basis for different colours etc (using this calculator, as it happens Calculate Resistors for LEDs).

Just wondering if anyone knows if there's a drop, how much it would be etc I know the diodes knock off 0.7V each anyway. Any help on this would be greatly appreciated, I tried googling "JFET voltage drop" and can't seem to find a definitive simple answer
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