Here is the text that should have accompanied the image. ::L1 makes it look like a Royer =20 =20 L1 is just a smoothing choke for the power feed. When these and another=20 type of cheap ballast (uses 2 * 2SC2655) blow they either short the power=20 supply or cause CRT monitors to have rolling pictures. =20 =20 A picture of one that hasn't exploded it's components or set fire to the=20 PCB. Colin -- cdb, colin@btech-online.co.uk on 9/01/2012 =20 Web presence: www.btech-online.co.uk =20 =20 Hosted by: www.justhost.com.au =20 =20 This email is to be considered private if addressed to a named individual= =20 or Personnel Department, and public if addressed to a blog, forum or news= =20 article. =20 =20 =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .