- Jul 1, 2010
Personally, I'm glad Northstar and I did that side trip. Otherwise, getting into a second page here might imply that we take this thing seriously.
As most machinists know, the optimal torque and pre-load for a screw is 1/4 turn before it strips.
Correct. Don't know why so many people can't figure that out.
I would never use brass (or bronze) for something like a speaker -- too soft. AFAIK brass screws are only used for looks (decorative) and light-duty applications.
That was really funny Bob. I almost lost my head over it.Most (vast majority) audiophiles, and music lovers, don't know that. ...And both categories of these people are NO machinists.
You are in the minority Tim. ...Others think that it's a 1/2 turn passed the 'point of no return' (flush with the surface).
True, and copper also is a very soft metal. It bends easily, and the head of the screw comes out with little over-torqued.
...And when a screw loses its head, you know how hard it is to get back ....
Sooo, that guy from that video is not what people like us want to follow 'screwingly'.
And maybe he also likes brass cables (speaker wires and interconnects)? ...For EMI & RFI noise rejection and all that brass ....
Slightly OT. I recently replaced all of the small Philips head screws in my preamp with steel Torx head screws. The reason..to access the tubes inside requires a removal of the heavy steel top plate, do this a few times and you are stripping the head off the Philips screw. Since I roll tubes in fairly often, seemed like a great idea. Sonically, no diff
Lots of inferences and assumptions. Too bad none of them are correct.That would infer you were using the wrong size Phillips screwdriver for the screws that you are removing. As far as rolling in tubes "fairly often," I believe Ken Stevens would be the first to tell you that it's not a good idea unless the tubes were sourced from him. The CAT is a very picky preamp when it comes to tubes and noise and Ken selects each tube for the socket it's going to be used in.
I wish we would wake up tomorrow and someone would outlaw philips, flat head and English measurement system .Slightly OT. I recently replaced all of the small Philips head screws in my preamp with steel Torx head screws. The reason..to access the tubes inside requires a removal of the heavy steel top plate, do this a few times and you are stripping the head off the Philips screw. Since I roll tubes in fairly often, seemed like a great idea. Sonically, no diff
The English measurement system; is it miles instead of kilometers, and Fahrenheit instead of Celsius, and feet instead of meters, etc.?
...Pounds (kilograms), US gallons (Canadian gallons) , ....
It's funny that in 2013 the technology doesn't apply to screws! ...Well, some, but certainly not most.
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