land-boards.comThe FabGL design has 400 and 800 ohm summing resistors. These are not standard values and don't achieve the possible drive for a VGA monitor.
The VGA monitor has 75 ohm termination. The full intensity voltage is 1V.
The ESP32 has a lot of drive current. Enough to drive a 75 Ohm resistor easily.
I ran a simulation and picked the best common resistor values. The best values are 270 and 560 ohms.
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