FINAL STEPS
By now you’ve installed all parts but the DIY500 mkII side panels and knob. We will use these parts in the following procedures, before powering on and testing our completed preamp.
Fig. 101 Locate the (8) flat undercut 4-40 screws from your DIY500 mkII Minimal Kit hardware bag. Use them to attach the side panels as shown.
Fig. 102 A side view shows how the side panels wrap around to form the module enclosure.
Fig. 103 With the bottom side panel installed, the module is half covered.
Fig. 104 The second identical side panel is installed on top for full coverage.
Fig. 105 Space is left for ventilation.
Fig. 106 The edge connector is left accessible.
Fig. 107 Use a 1/16" hex wrench (aka allen key) to tighten the control knob over the gain pot shaft.
Fig. 108 The knob should rotate 300˚ without scraping against the front panel.
Fig. 109 Congratulations! Your module is complete.
Fig. 110 Lookin' good.
Fig. 111 Install your module in a 500 Series enclosure for testing. Note the neighboring DIY500 mkII module has been redecorated. There are many ways to do this, which we may explore in a future tutorial.
Fig. 112 Using a Purple Audio CANS headphone amp and Shure SM57 microphone, our preamp sounds OK!
FIN
