Hi Bryon,
A diode will conduct current when the voltage at the terminal FROM which the arrow is pointing is greater (i.e., more positive, or less negative relative to some reference point) than the voltage at the terminal TO which the arrow is pointing. (And with most diodes that difference in voltage has to be at least several tenths of a volt before significant current will flow).
What makes it confusing, though, is that when conduction occurs the direction of electron flow is opposite to the direction of the arrow. That is because by convention the direction of current flow is defined as if positive charges were conducting the current (from + to -), even though electricity in metallic conductors is conducted by electrons which are negatively charged (flowing from - to +).
I have no idea, though, what HiFi-Tuning intends the arrow to signify, if anything.
Best,
-- Al
A diode will conduct current when the voltage at the terminal FROM which the arrow is pointing is greater (i.e., more positive, or less negative relative to some reference point) than the voltage at the terminal TO which the arrow is pointing. (And with most diodes that difference in voltage has to be at least several tenths of a volt before significant current will flow).
What makes it confusing, though, is that when conduction occurs the direction of electron flow is opposite to the direction of the arrow. That is because by convention the direction of current flow is defined as if positive charges were conducting the current (from + to -), even though electricity in metallic conductors is conducted by electrons which are negatively charged (flowing from - to +).
I have no idea, though, what HiFi-Tuning intends the arrow to signify, if anything.
Best,
-- Al