The PCB-design for Daivid Tait's parallel programmer for PIC16C54 had some small errors. I have corrected them and put them to my home page Protel 2.8 version : http://www.sci.fi/~pri/dtaitpcb.zip Postscript version : http://www.sci.fi/~pri/dtaitps.zip Pekka -- Probyte Oy Software/hardware design works. Tampere, Finland http://www.sci.fi/~pri email:pri@sci.fi phone int+358-3-2661885 fax: -2661886