Modified O2 clamp
 

Was messing around with the O2 clamp and now I think I broke it...only gives voltage of .014 when checked. I went to radio shack and was able to get all replacement parts save the 7k resistor and 20 turn 5k pot...they only had a 15 turn 10k pot. Can I solder in line resistors to make up 7k and somehow use the 10k pot? Thanks for the help!

There is room to substitute a 6.8K resistor or other resistors combined to get you close, and a 10K pot can work.

I think you should avoid radioshack if you can and go with a reliable electonics distrubuter.....reason being, RS is only interested in profits over and above their crappy components. IMO, If you go to somewhere like Digi-key (online), you can actually find the temp ranges for your components, and shock resistance- you might be surprised at some of the ranges for the cheap junk that RS typically carries. I spent the extra 20cents per component and got high shock, and wide temp range components. My o2 clamp has never had a problem from 130F (in cabin temps) to sub zero temps. Worth the extra 2 bucks IMO.