Dear OC,

Thank you for your telling me the site for opto.

However, I have succesfully completed the D to A project with 0.7 to 35 volts variation with 0.1 volt each step.

This is 11 bit D/A converter.

I have interfaced the output to the tuning circuit of old color TV and now the tuning is done from 11 bit digital data. I just have to make use of serial eeprom and 2051 to finally convert the old TV into remote control unit.

I am trying to host the details of this D/A on a free site. Will let you know soon.

Overall, this 35v thing has been quite exciting for me.

Babar/