I know that Smog could not get a regular VGA card to work by just combining HSYNC and VSYNC
That was the whole reason for the circuit in the first place.
But Ultimarc's ArcadeVGA and J-Pac are designed to work differently than normal VGA cards.
All I'm saying is that if the J-Pac only needs the second half of the circuit then the ArcadeVGA should only need the second half of the circuit since they both can output the same composite sync.
And yes, I have been able to test the GunCon2 by only connecting an RCA jack to video ground and the twisted HSYNC and VSYNC ( composite sync ) on an ArcadeVGA card
However, that's not saying that I won't get better performance by building the circuit.
So if J-Pac and ArcadeVGA can already ouput a composite sync then all we need is the second half of the circuit to convert the TTL to analog, right?
I really don't mind if I'm completely wrong on this.
I just want to complete
the guide with the best connection method for each setup.