Jimmy Foster – Making an Archtop Guitar – Part 1

Master Luthier Jimmy Foster introduces you to his shop in New Orleans, and he begins building a new 7-string archtop jazz guitar. This focus of this video is the beginning stages of creating the guitar neck. In this video, Jimmy performs “Stompin’ at the Savoy” on a 7-string archtop guitar. See more at www.fosterguitars.com
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In this video we make hydrazine sulfate by the hypochlorite ketazine process. Warning: The reaction produces toxic gases and products. It also uses corrosive chemicals, gloves must be worn. Hydrazine sulfate is a useful substitute for the more dangerous pure liquid hydrazine in chemical reactions. Simply adding in a stoichiometric amount of base will release the hydrazine in-site and allow for it to be use in for such purposes as reductions, azotizations and various other synthetic uses. The process to make hydrazine sulfate is extremely simple: Start with 250mL of ammonia and add to it 100mL of methyl ethyl ketone. Stir and then slowly add 1/4 mole equivalent of sodium hypochlorite based bleach. if using 10% bleach then about 186g is needed. If using 6% household bleach about 310g is needed. As the bleach is added the reaction will heat up and bubble vigorously, slow down the addition if it’s bubbling too much. After all the bleach is added, keep stirring until the mixture stops bubbling. Then stop stirring and allow it to stand for a few hours until so until it separates into two clear layers. The top layer is methyl ethyl ketazine. Separate it using a seperatory funnel or by careful decantation. In a separate container, add 20mL of concentrated sulfuric acid to 100mL of water and stir. Then add the hot solution directly to the ketazine and keep stirring. The hydrolysis will generate crystals of hydrazine sulfate. Let solution cool to room temperature on its own and …