15W Stereo Amplifier Case

This is a case to a 15W audio amplifier board that can be found on eBay,
AliExpress, ... such as https://www.aliexpress.com/item/1005002517497340.html?spm=a2g0o.productlist.0.0.7462b654eemdXa&algo_pvid=412475d6-414d-4bc6-8a4f-dc36c4df9b22&algo_exp_id=412475d6-414d-4bc6-8a4f-dc36c4df9b22-32&pdp_ext_f=%7B%22sku_id%22%3A%2212000020965939644%22%7D&pdp_pi=-1%3B1.78%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch . I use this amplifier for an Asus Tinker Board.  This is not an affiliated link.

You will also need a mini toggle switch, a barrel power jack and a 1/8" stereo
jack and some 22 gauge wire. The hole for the power jack is 8.25 mm. The hole
for the audio jack is 6.25 mm.

The board is held in the case with one 8 mm, M3 screw on the front. Since the
screws in the back are difficult to reach, using 20 mm, M3 screws help. Then
with tweezers, it is possible to put the nut on top of the screw. The heads of
the screws are on the bottom of the case.

This object main web page is:
http://www.ctheroux.com/15w-stereo-amplifier-case/.

You can request the source files on the page listed above.