How many MPSs are "popped"? |
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How many MPSs are "popped"? |
McMark |
Mar 26 2005, 03:48 AM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I pretty much assume that every MPS I see is either broken or on its way out (diaphragm damage). I'm I right or wrong?
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Demick |
Mar 26 2005, 09:31 AM
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#2
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Ernie made me do it! Group: Benefactors Posts: 2,312 Joined: 6-February 03 From: Pleasanton, CA Member No.: 257 |
Here's the problem - money. Tooling to make a new MPS diaphragm is $5K-$10K. Even with the tool, cost each would be ~$150 due to low volumes, material (BeCu), and the threaded boss in the middle. That means that you have to sell them for $250 each, and then sell 50 to 100 just to break even.
These are just ballpark figures - but if you can find 100 people to cough up $250 each just for the diaphragm, then you are in business. Keep in mind, this doesn't include dissassembly, reassembly, and re-calibration of the old MPS - which most people are not capable of doing. For that kind of money, I prefer to just buy used ones that hold vacuum for $20 each and re-calibrate them. Demick |
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