I thought using a tin would be a cool idea. I am curious if this has been done already? Search function doesn't seem to work for me here. The circuit is a PNP Boost from 99ZuluFX. I reinforced the lid with 12g aluminum plate I think the tin is a little too thin by it self to be stomping on all the time. I Used sockets for the transistor. I have been having fun changing them out and listening for the differences.