At 12:01 PM 31/05/2005 -0500, you wrote: >On 5/31/05, Russell McMahon wrote: >> I have a friend trying to implement a 600 mm dia LPG ring burner to >> heat a LARGE casting to assist in dis-assembly of a very large beam >> engine manufactured in the 1800's to pump water for Auckland City. >> >> If anyone can offer any useful comments on suitable burner fabrication >> it would be appreciated. Details below. >> >> To: "Russell McMahon" >> Sent: Tuesday, May 31, 2005 4:25 PM >> Subject: burner design and implementation >> >> > Russell, >> > >> > I have been trying to build a quick-and-dirty LPG-powered ring >> > burner for >> > evenly heating a large expansion joint casting on the engine at >> > MOTAT. I >> > need a ring of flame (directed inwards) about 600mm in diameter. > >LPG burner? Bah, far too pedestrian. This job calls for induction >heating. Low freqeuncy for a big coil and deeper pentration... >Little wasted heat... So, who has a (ds)PIC-based design for a >water-cooled RF power supply? I wonder how much power he needs? > >Bradley RF? Just use mains frequency. Run a number of thick turns around it and switch on ;) Regards Roland Jollivet -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist