I'm trying to adapt the 16c84 programmer (described in the Microchip's application note AN589) to program the 16c73, but it don't want to get programmed. I have successfully programmed the 16c71, as well as the 16c84. The programming specifications for the 71 and 73 are the same. What I'm doing wrong ? Note: The 73 I want to program is a "PIC16c73 /JW 9526SAT" UV erasable. -- Ismael Ripoll: iripoll@disca.upv.es Universitat Politecnica de Valencia; Apdo 22012, 46071 Valencia Tel: +34 6 3877 574 Fax: +34 6 3877 579