>[1] The parts really have gotten mis-programmed to LC mode. We have a batch a PIC16C73A-04/SO parts which are programmed to XT, but only have LP drive and therefore don't work with our resonator circuit. Burning other chips (same tube) to HS resulted in almost-XT-level drive on the outputs, and therefore work. Anybody else have similar comments? Perhaps Microchip messed up? Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================