Danny, I tend to use MAX202, MAX232A, or ST202 devices which can use 0.1-uf values... Example (below); five Kemet ceramic 0.1-uf monolythic caps' installed in the open space of a machined pin socket... Happy Holidays... Regards, Mike -- Sent from the MicroControllers - PIC forum at Nabble.com: http://www.nabble.com/-EE-selecting-capacitors-for-Max232%2C-and-in-general-t757512.html#a1981210 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist