The cone is stacked 1/2" Baltic birch plywood. Turned on my lathe. I took the basic idea from your article in this month's magazine, designed by Nate Granzow, and added a few ideas of my own.
I found the old Victor nameplate with the "His Master's Voice" logo on E-bay. I thought it really set off the design, since it is based on the principles of the old grammaphone.
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