Ron
It worked out well, the strain gauge did fine, but the amplification circuit or something in the system was radio frequency sensitive, if a walky talky was keyed any where near the car, parked or while driving, it caused a hard right turn, I passed a High Way Patrolman who was about to use his radio so I prepared for my steering to turn right and sure enough, it tried, and he was some 100 feet away I eventually went to a commercial steering unit, but I had fun designing and building this one and was proud that it worked, in spite of this flaw. It's my thinking that the stain gauge itself was the RF receiver and I was using a INA122 intrument amplifier set for a gain of 1000.
Jeff