> I have grown so accustomed to using metal film resistors for > 'everyday' applications that carbon film doesn't usually feature in my > thinking. > The real world uses carbon film except where conditions dictate otherwise. If you don't trust the supplier, what does it matter if they provide crappy metal film or crappy carbon film? They are a bad supplier, find someone else. Besides, you can always specify accepted manufacturers and part numbers. Cheerful regards, Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist