XR2206 Signal Generator Improved Case

Improved case for XR2206 based Signal Generator kits, available many places (like [here](https://smile.amazon.com/KKmoon-Precision-Generator-Adjustable-Frequency/dp/B01HM70CMY/ref=pd_lpo_sbs_147_t_0?_encoding=UTF8&psc=1&refRID=TSF645AE0ECQC0NY1FR1) with an included awful acrylic case. This replaces the whole case except for the front panel, as that has hard to reproduce labeling on it.

ASSEMBLY INSTRUCTIONS (these are pretty straigntforward):

In the kit, there are some short screws and nu