Save Old Iron 1,571 #1 Posted December 4, 2014 (edited) Forum member COD (Steve) submitted an interesting electrical item for dissection. A "Deere style" rectifier regulator tagged "output is stuck at 12.3 volts". After removing the potting compound from the regulator body, unsoldering the leads from the SCR and removing the circuit board SCR is press fit into the outer housing The regulator circuit board - ready to give up it's secrets The B+ and one of the AC terminals are indeed physically - and therefore electrically - connected together. Some analysis and possible repair work coming next. Edited December 4, 2014 by Save Old Iron 6 Share this post Link to post Share on other sites
JC 1965 1,532 #2 Posted December 4, 2014 Very interesting Chuck, thanks for sharing. I always wondered what the inside looked like. Share this post Link to post Share on other sites
prondzy 3,889 #3 Posted December 4, 2014 interesting I will be following this one for sure! Share this post Link to post Share on other sites
oldlineman 1,513 #4 Posted December 4, 2014 Very interesting stuff and very well done, thank you SOI for your expert explanation of these parts Share this post Link to post Share on other sites
Molon_Labe 731 #5 Posted December 5, 2014 Sounds like they are half wave rectifying, filtering and regulating the B- side of the circuit. That would seem like a left handed approach but easily doable. Interested to see what you come up with on this one. Share this post Link to post Share on other sites
meadowfield 2,713 #6 Posted December 5, 2014 Isn't this just the compact version of the old style RR. Didn't Andy have a board from one? I seem to think I made a couple of boards with the later design. Share this post Link to post Share on other sites
