Quote:
Originally Posted by Neil Purling
It is a very odd method of construction. One would expect a aluminium chassis inside a aluminium case to prevent any RF escaping from any place but the proper output.
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And fire!
It's possibly simply because the builder didn't have the capacity to work metal - either the tools or the skills. Just conjecture, but for example, I would find it difficult if not impossible to work a metal chassis here. I barely have enough metalworking training, and I certainly don't have either the tools or the space to do a good job.
For a prototype, certainly, it is far easier to attach the various sub-assemblies that we see dotted around there. Nothing that I see there would cause me any problems to construct, and I'm not in the elite club of forum master-craftsmen!