[quote name='flyfisher' timestamp='1387129648' post='2308477']
19-inch rack blanking panels are widely available online in various 'U' sizes and will have the required rack-mounting screw-holes already punched out.
It would be fairly easy to cut one of these in half and then bend each piece as required for the width of the amp. Drill the necessary amp-mounting holes and the job's a good'un.
Try not to get a too high-quality blanking panel as these may be rather thick and not easy to cleanly bend without a sheet metal press. Alternatively, search for a metal fabrication business in a local industrial estate and pop along with the two pieces of panel with the required line of the bend clearly marked. Ask nicely and you'll probably find they'll make a nice sharp bend for you for nothing, but give them a fiver anyway. If you have marked the required drill holes they'll probably do that for you as well.
This sort of approach works best with very small companies rather than the bigger ones. Basically, you need the sort of place where you can walk directly into the workshop, not a carpeted office with the workshop out the back.
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I hadn't thought of that, I know just the chap. Thank you