Does anyone have any experience in what fails on these systems electronically. Are there any commonly failing components or culprits to look for ?
Capacitors and the two adjustment potentiometers typically. John Oldenburg in Galena, IL is a master at rebuilding these. He also calibrates for modern street lighting - did mine and it worked flawlessly.
Here is an add he has on ebay. 1 of the pictures has is contact info.
https://www.ebay.com/itm/1961-1962-Cadillac-Guide-Matic-Autronic-Eye-automatic-dimmer/333437899434?hash=item4da27292aa:g:9CsAAOSwF79d9Nqy
Thank You