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Old November 29, 2016, 10:18 PM   #58
Join Date: March 4, 2005
Location: Ohio
Posts: 16,343
You can calculate what it would take. You have something like a gram to a gram and a half of brass in the neck and shoulder. The specific heat is about 3/8 of a joule. So, to raise the brass about 400°C would take about 150 joules. The definition of a watt is a joule per second, so if you got 150 watts to transfer without loss to the neck and shoulder, it should be done in about a second. In reality, you are using an air core coil, so it might take three seconds, but not long if all is correctly in place.
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