Kit Arrived - Chassis feature

[BluesDude]

My 5e3 kit arrived. I checked the BOM to make sure everything arrived and started preparing for the build.

I noticed that the chassis has a copper grounding post welded on the inside about 1 inch about the middle of the hole cut for PT (on the side where the caps and resistor eyelet board is mounted. I have been looking at other tweed builders pictures and have not seen this before. Anyway, it looks like an alternative to grounding using one of the transformer mounting bolts.

Of course, this is my first build... Anyone seen this before?

[loudthud]

Modern safety rules dictate that atleast the power line safety ground gets it's own screw to the chassis where nothing else is connected. Another rule says you can't allow the power cord strain relief to twist. Is the hole for you power code round or is it a hole with two flat sides?

[BluesDude]

The power cord hole in the chassis is round... but the actual strain relief I relieved has flat sides.

Must be a quality control problem or oversight on the part of the chassis manufacturer.

[loudthud]

The original examples I've seen all had round holes. I'm not sure if rubber grommets were ever used. My 59 tweed has a Heyco type strain relief.

[tubeswell]

For strain relief, I use those little plastic P-Clamps that are one size 'undersized' for the mains cord. That was it tightens real good. (Sheesh - Does that sound real bad or what? )

[BluesDude]

I saw at least one kit that use a P-Clamp in addition to a strain relief. I suppose to minimize the chance of twisting the cord.

I saw where on builder replaced the plastic strain relief insert with what looked like a 3/8" Romex (house electrical wire) clamp style box connector. That would prevent the cord from twisting.