Trainwreck Chassis Metal

[Diablo1]

I'm planning on making my own chassis for a T-wreck clone, and I was wondering if anyone has built one using a chassis other than aluminum. I know KF used aluminum, but I'm thinking that either galvanized steel or stainless steel would also work well - they do in other amps. Is there anything peculiar about the wreck that these other metals won't work or will make a noisier amp? Would a steel chassis make a quieter amp because of better magnetic shielding than aluminum?

[soma_hero]

Since steel is magnetic, it can be a trick to keep ground currents from effecting signal wires. I'm sure it could be done but you'd probably have to rework the entire grounding scheme.

The grounding scheme in a Trainwreck isn't necessarily the best, but it works. If you went straight from aluminum to steel, I bet you'd have trouble. I'd stick with aluminum, weld the corners and it'll be fine..

[jaysg]

I'm not sure if KF ever commented on aluminum. The general hypothesis on aluminum and boutique amps is that...either the builder is attempting to work with simpler materials (cutting, drilling etc.) or they're going for the most live and interactive electronics possible. Letting magnetic fields be, seems intentional in both KF and HAD cases.

[Plexified]

Ken implied Amuminum provided a faster ground path and better high end . In addition , aluminum is non magnetic and doesn't effect the magnetic field of the transformers . Often the magnetic radiation has effects on components . That may or may not be a design consideration . But the reality is it does have an effect . Understanding how allows you to perhaps inherit more tools for your design arsenal