>Is there any easy way to hack the oscillator circuit (tack-soldering on com- >ponents as needed) so that an LP-programmed PIC will operate at 4MHz? Someone Use a TTL oscillator. These are often found in metal cans that plug into a 14-pin DIP socket. Or, make your own with a hex inverter. Andy ================================================================== Andy Kunz - Montana Design - http://www.users.fast.net/~montana ==================================================================