Does R5 supply power to gate at V4 when V1 is in the off state and V1 grounds the gate at V4 when V1 is in the on state? This is a bit confusing for my primitive mind. hehehe
Right you are.
What does R7 do? not clear as to its function.
It makes sure U5 turns off.
From what I understand, if the LED in V1 were to fail that would leave the system in an always on state. I don't think this is a big problem as LEDs are very reliable, but I would be providing free internet until I detected the faulty LED.
This is true, but reliability is very good.
Do you think 2N7002 has enough current capacity? It handle 115 mA whereas the 2N7000m handles 200 mA and is about the same price.
The 2N7000 would be better.
Can't find the 1N5717 Diode. Could I use a 1N4002 1A 100V Rectifier Diode instead?
Should be okay
Would the resistor at R3 be something like this 120 Ohms OHM 1/4W ?
And at R5 and R7 something like 5K1 5.1K Ohms OHM 1/4W 5% Carbon Film?
Should work fine.
My only other question is what do you predict the voltage at regulator to be now?
I have the voltage now at 1.375 volts.
Good luck with the project! Come back and tell us how it works.
Hope your cold is better.