Does it appear to you that I have not toasted the photodiodes? given the measurements I have listed above.
My apologies. I think I was mixing up A and O because I was skiping around so much trying to wrap my head around things. thus creating confusion for you that was unnecessary. Rest assured that I am doing my best to not waste your time and am not trying to be lazy and just ask for everything done for me. I am so happy that I am finally learning this stuff. Its been a dream of mine for years to understand things like resistors, diodes, transistors, timers, ics, etc. I only know enpough to be dangerous, but whole heartedly want to get to a place where I am proficient in basic electronics, plc's, servo drives, communication etc. My strongest interest in life is machine tools (particularly Parker Majestic, Moore and Monarch) so understanding the electronics operating everything and how they do it will give me a better understanding of the whole thing. I get the mechanical side of things fairly well. I can correct geometry with scraping and rebuild spindles and such, but have onle ever had a vauge understanding of how 'real' machines work.
Hobby control I am familiar with. Running industrial controlled machines I have done, but knowing how the industrial machines work is a whole other level of understanding I have a strong desire to achieve.
BTW, I was careful not to short out the internal 24dc like I did before. I thought the clicking sounded 're-set-ish' and so I pulled the meter leads after short observation. fortunately the protective circuitry appears to have saved me.