G5 with ADC video port question

An ADC to DVI adapter followed by a DVI to VGA adapter won't work because adapters don't pass the analog video signals used for VGA. You need an ADC to VGA adapter. They are becoming scarce and expensive.
<http://www.welovemacs.com/mcaadcvga.html>

If you only need one VGA display, use a DVI to VGA adapter. You can use a cheaper ADC to DVI adapter for a second, DVI, display.
<http://www.smalldog.com/product/12651830>

hey Small Dog guy, you're saying that it will work for my 2nd monitor to go from ADC to ADC-DVI adapter to a DVI-VGA adapter to the monitor? Is there any other way to go from ADC to a VGA monitor?

If you have one DVI and one VGA display, the cheap way is to use an ADC to DVI adapter to connect the DVI display to the ADC port, and a DVI to VGA adapter to connect the VGA display to the DVI port. The expensive way is to connect the DVI display to the DVI port and use an ADC to VGA adapter to connect the VGA display to the ADC port.

If you have two VGA displays, you need a DVI to VGA adapter to connect one display to the DVI port, and an ADC to VGA adapter to connect the second display to the ADC port. There is no cheap way to use two VGA displays.