https://dimitar.pages.cba.mit.edu/blog/projects/metal_box/index.htmlBackground Many years ago, I designed a Class B power amplifier based on Douglas Self’s “blameless” topology. But, I didn’t have a box to put it in. Now, I have access to tools to make a box. So, I decided to make one. Methods I only thought of doing this the day before Herestuck, so I did not have time to order materials. However, Dan gave me scrap 6061-T6 from the CBA Shop.Hugoen-us