SHOP NOTES: COMBO 600

[electrofaro]

Welcome Adam - nice piece of history there

[apossibleworld]

It is super cool indeed!

[jingle_jangle]

Welcome aboard, Adam!

Cold-rolled steel did occur to me originally...but it looked so much like aluminum. Duh. How did it not rust in that climate? Galvanizec?

[electrofaro]

Paul, galvanised steel has some form of coating, which I don't see on the picture.

In argriculture they used a type of cheap stainless steel for tanks which is not galvanised, but won't rust for decades. I looks like the same stuff I worked with when I worked in agriculture as a student. How they produce it I don't know, I'm not Krupp

[jingle_jangle]

First off, galvanizing is a coating for carbon or mild steel. This does not look galvanized. Additionally, you can't galvanize stainless, not that you would want to; it won't rust or corrode in normal use.

So, my original question re: material used for this back plate...

[expatguitars]

Gosh, I'm not a metallurgist, nor do I know exactly how long this particular Rick has called Japan home. There is also the possibility that the shop vernacular did not match up with the actual material used. Also note that the drafter of the document merely says that they are out of shiny CRS; he does not say what the alternate material is, other than not shiny.

[jingle_jangle]

Easy--steel of that gauge would weigh about 4-6 ounces; aluminum half that. The aviation shear marks on the plate seem to indicate aluminum, and that's what I would use, too...

[expatguitars]

I appreciate the edification, Paul. The plate weighs in at 250g.

[8mileshigh]

Welcome Adam - nice piece of history there

+ 1

I love it........whatever it says and whatever it's written on

[clsatt]

that's one way to do shielding. I'd bet between the "CRS" back plate and the metalics used on the pickguard and the horseshoes around the coils-- this thing must have been silent.