DIY Plug and Play PCI RIAA Phono Preamp

DIY Plug and Play PCI RIAA Phono Preamp
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Southern Arizona Fossils	Walt's Songwriting Web Site
The next step is to test fit the card. I used an old riser card to do this. Do not plug this into a motherboard that is connected to a power supply, or you may short out the standby voltages and fry your system. Use an old motherboard, or a riser card like this that you do not care about.

The circuit card has one VIA for the +12 Volt connection to the PCI slot. This VIA has to be marked before etching to line up the traces on both sides of the board.

Here is the other side of the board