Ha I was there at Sleepy Bear I posted blog lower left on main page (Randsberg) this thing Looks Nuthing like it does here.. I tried to use it for Assay it never really got hot enuff and the Flames Cut in to the crusible and wile mixing with a Welding rod some glass would get on the sides creating a Cavity, and the spacer Rings Cracked from Heat but it Melted Gold
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I saw one of those at the plp fund raser in the desert looks nice
Looking forward to seeing pics of your bars soon.