---------- From: HomerLea-at-aol-dot-com [SMTP:HomerLea-at-aol-dot-com] Sent: Monday, February 23, 1998 7:57 PM To: tesla-at-pupman-dot-com Subject: Pyrex diss. factor I am thinking of winding some coils on 4 inch Pyrex glass tubing but want a high Q coil. Does anyone have a reference handy that lists the dissipation factor for Pyrex glass? I know it is lower than soda glass but don't know how much lower. jim heagy